Question
Mike created a cone that has a diameter of 8 feet and a height of 3 feet. Find the volume of this cone.
- 50.24 ft3
- 150.72 ft3
- 0
- 192.65 ft3
Hint:
1.Based on the Question one should use formulae. if slant height and radius is given then using Pythagoras theorem first find height and then calculate volume from general method.
2.If you were given radius and height then calculate volume directly from area height.
3.Similarly, when you have given only height and slant height calculate radius to find area of a circular base. and then, it's pretty simple apply volume theorem.
The correct answer is: 50.24 ft3
The Given Data:
Diameter of a circular base: 8 feet
We know 2radius=diameter. Then. radius=4 feet.
height of a cone = 3 feet.
Hence, Volume of a cone = Area of a circular base Height
Area of a circular base: r2 = 3.14 42 = 50.24 ft2 .
Volume of Cone = 50.243 = 50.24 ft3.
Hence, The volume of a cone is equal to the 50.24 cubic feet.
Cone is a 3-Dimensional Geometric Shape which has circle as a base and and the end points of a circular diameter connected at one point called as a apex or cone vertex. Since, it is a closed shape it is associated by some volume and that volume is calculated in many ways.
The cone is basic volumetric shape which has radius of the base as r and height of the cone as h. Sometimes we were given that lateral height or slant height which is called as curve tracing of end of a circle to the apex point. From figure we can define a relation for r(radius),height(h),slant Height(l) from Pythagoras theorem. That is, l2 = h2+r2.
Volume of a Cone: Cone is derived quantity from a cylinder. Hence, the portion of cone is to be noted. In general the cone surrounds 1/3rd volume of the cylinder.
hence, The volume of a cone is defined as Area of circular base height of the cone.
V=r2h.
From this formula we can find volume of a cone easily.