Mathematics
Grade-8
Easy

Question

The red line is representing ______________ in the below picture.

  1. Radius
  2. Diameter
  3. Base
  4. Height

The correct answer is: Radius


    A line from the center to the circumference of the Circle is the radius of the circle. So, The red line is representing radius in the given picture.

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    A cone has the radius of 156 cm and the height of 294 cm. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, we have derived an expression for volume of the cone as 1 third πr squared straight h. Then, calculate the volume of the cone using the given data.
    Given that:
    Radius of the data = 156 cm
    Height of the cone = 294 cm
    Hence, The volume of the cone = 1 third πr squared straight h
    =fraction numerator 3.14 cross times 156 cross times 156 cross times 294 over denominator 3 end fraction
    =7488673.93 cm3.
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    A cone has the radius of 156 cm and the height of 294 cm. Find the volume of the cone. Round your answer to the nearest tenth.

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    Since, we have derived an expression for volume of the cone as 1 third πr squared straight h. Then, calculate the volume of the cone using the given data.
    Given that:
    Radius of the data = 156 cm
    Height of the cone = 294 cm
    Hence, The volume of the cone = 1 third πr squared straight h
    =fraction numerator 3.14 cross times 156 cross times 156 cross times 294 over denominator 3 end fraction
    =7488673.93 cm3.
    Therefore, Volume of the cone is 7488673.93 cubic centimeters.

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    A cone has the radius of 0.8 meters and the height of 1.6 meters. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, we have derived an expression for volume of the cone as  1 third πr squared straight h. Then, calculate the volume of the cone using the given data.
    Given that:
    Radius of the cone = 0.8 meters
    Height of the cone = 1.6 meters
    Hence, Volume of the cone = 1 third πr squared straight h
    fraction numerator 3.14 cross times 0.8 cross times 0.8 cross times 1.6 over denominator 3 end fraction
    = 1.0717 meters3.
    Therefore, Volume of the cone is 1.0717 ~ 1.07(rounded off to nearest tenth) cubic meters.

    A cone has the radius of 0.8 meters and the height of 1.6 meters. Find the volume of the cone. Round your answer to the nearest tenth.

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    Since, we have derived an expression for volume of the cone as  1 third πr squared straight h. Then, calculate the volume of the cone using the given data.
    Given that:
    Radius of the cone = 0.8 meters
    Height of the cone = 1.6 meters
    Hence, Volume of the cone = 1 third πr squared straight h
    fraction numerator 3.14 cross times 0.8 cross times 0.8 cross times 1.6 over denominator 3 end fraction
    = 1.0717 meters3.
    Therefore, Volume of the cone is 1.0717 ~ 1.07(rounded off to nearest tenth) cubic meters.

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    A cone has the radius of 10.3 meters and the height of 4.5 meters. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, We have derived an expression for volume of the cone as  1 third πr squared straight h. Hence, evaluate volume of the cone using the given data in question.
    Given that:
    Radius of the cone = 10.3 meters
    Height of the cone = 4.5 meters
    Hence, Volume of the cone = 1 third πr squared straight h
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    Since, We have derived an expression for volume of the cone as  1 third πr squared straight h. Hence, evaluate volume of the cone using the given data in question.
    Given that:
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    Height of the cone = 4.5 meters
    Hence, Volume of the cone = 1 third πr squared straight h
    =fraction numerator 3.14 cross times 10.3 cross times 10.3 cross times 4.5 over denominator 3 end fraction
    =499.6839 meters3.
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    A cone has the radius of 2 meters and the height of 5 meters. Find the volume of the cone. Round your answer to the nearest tenth.

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    Given that:
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    The circumference of the base of the cone is 8.5π inches. Calculate the volume of the cone in terms of π. Round to the nearest hundredth.

    Since, we have derived an expression for Volume of a cone and circumference of a circle. Obtain Volume of the cone accordingly as follows:

    Given that:
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    Height of a cone = 15 inches
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    Since, we have derived an expression for Volume of a cone and circumference of a circle. Obtain Volume of the cone accordingly as follows:

    Given that:
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    Height of a cone = 15 inches
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    ** Radius of base of a  cone (r) = 17 over 4
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    fraction numerator 17 cross times 17 cross times 15 over denominator 3 cross times 4 cross times 4 end fractionstraight pi
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    Since, we have calculated the volume of a cone as 1 third πr squared straight h. Hence, Obtain the volume of the cone using the given attributes of a cone given in the question.
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    Height of the cone = 3.5 meters
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    A cylinder and a cone have congruent bases and heights. _____________ will be the relationship of the volumes of the two figures.

    Assumption:
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    Since, we have derived volume of cylinder as πr squared straight h and volume of cone 1 third πr squared straight h.
    Hence, fraction numerator V o l u m e space o f space c y l i n d e r over denominator V o l u m e space o f space c o n e end fraction spacefraction numerator πr squared straight h over denominator begin display style 1 third end style πr squared straight h end fraction
    fraction numerator V o l u m e space o f space c y l i n d e r over denominator V o l u m e space o f space c o n e end fraction space= 3;
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    A cylinder and a cone have congruent bases and heights. _____________ will be the relationship of the volumes of the two figures.

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    Assumption:
    Let, radius and height of the cylinder and cone are equal.
    Since, we have derived volume of cylinder as πr squared straight h and volume of cone 1 third πr squared straight h.
    Hence, fraction numerator V o l u m e space o f space c y l i n d e r over denominator V o l u m e space o f space c o n e end fraction spacefraction numerator πr squared straight h over denominator begin display style 1 third end style πr squared straight h end fraction
    fraction numerator V o l u m e space o f space c y l i n d e r over denominator V o l u m e space o f space c o n e end fraction space= 3;
    ***Volume of the cylinder = 3cross times Volume of the cone
    Volume of the cylinder is three times the volume of the cone.

    parallel
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    A cone has the radius of 2 inches and the height of 4 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, we have derived an expression for volume of a cone as 1 third πr squared straight h. Substitute the given attributes to find the volume of a cone.
    Given that:
    Radius of base of a cone = 2 inches
    Height of a cone = 4 inches
    Hence, Volume of a cone = 1 third πr squared straight h
    =fraction numerator 3.14 cross times 2 cross times 2 cross times 4 over denominator 3 end fraction
    =16.7467 inches3.
    *** Volume of a cone is 16.7567 ~ 16.76 cubic inches.

    A cone has the radius of 2 inches and the height of 4 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    MathematicsGrade-8

    Since, we have derived an expression for volume of a cone as 1 third πr squared straight h. Substitute the given attributes to find the volume of a cone.
    Given that:
    Radius of base of a cone = 2 inches
    Height of a cone = 4 inches
    Hence, Volume of a cone = 1 third πr squared straight h
    =fraction numerator 3.14 cross times 2 cross times 2 cross times 4 over denominator 3 end fraction
    =16.7467 inches3.
    *** Volume of a cone is 16.7567 ~ 16.76 cubic inches.

    Grade-8
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    A cone has the radius of 10 inches and the height of 9 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, we have derived an expression for volume of a cone as 1 third πr squared straight h . Hence, calculate any attribute of a structure using the given data.
    Given that:
    Radius of a cone :  10 inches
    Height of a cone :   9 inches
    Hence, the volume of a cone = 1 third πr squared straight h
    =fraction numerator 3.1456 cross times 10 cross times 10 cross times 9 over denominator 3 end fraction
    =942.4876 inches3.
    Hence, volume of a cone is 942.4876 ~ 942.49 cubic inches.

    A cone has the radius of 10 inches and the height of 9 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    MathematicsGrade-8

    Since, we have derived an expression for volume of a cone as 1 third πr squared straight h . Hence, calculate any attribute of a structure using the given data.
    Given that:
    Radius of a cone :  10 inches
    Height of a cone :   9 inches
    Hence, the volume of a cone = 1 third πr squared straight h
    =fraction numerator 3.1456 cross times 10 cross times 10 cross times 9 over denominator 3 end fraction
    =942.4876 inches3.
    Hence, volume of a cone is 942.4876 ~ 942.49 cubic inches.

    Grade-8
    Mathematics

    A cone has the radius of 6 inches and the height of 5 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    Since, we have derived an expression for volume of a cone as 1 third straight pir2h. Hence, just substitute values of a given attributes to find the volume of a cone.
    Given that:
                      Radius of base of a cone = 6 inches
                       Height of base of a cone = 5 inches
    Hence, Volume of a cone = 1 third straight pir2h
                                             =fraction numerator 3.14 cross times 6 cross times 6 cross times 5 over denominator 3 end fraction
                                             =188.49 inches3.
    ***Volume of a cone is 188.49 cubic inches.

    A cone has the radius of 6 inches and the height of 5 inches. Find the volume of the cone. Round your answer to the nearest tenth.

    MathematicsGrade-8

    Since, we have derived an expression for volume of a cone as 1 third straight pir2h. Hence, just substitute values of a given attributes to find the volume of a cone.
    Given that:
                      Radius of base of a cone = 6 inches
                       Height of base of a cone = 5 inches
    Hence, Volume of a cone = 1 third straight pir2h
                                             =fraction numerator 3.14 cross times 6 cross times 6 cross times 5 over denominator 3 end fraction
                                             =188.49 inches3.
    ***Volume of a cone is 188.49 cubic inches.

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