Question
Calculate the total surface area of the rectangular pyramid whose net is shown.
Hint:
The surface area of Pyramid = 
where p is the perimeter of the base , B is area of the base and l is the slant height of the pyramid.
The correct answer is:
Given, Slant height of the pyramid is 30 in. and the side of base is 20 in.
Therefore, the total surface area of the given pyramid is 1600 square inches.
Related Questions to study
A square pyramid is covered with decorative wrapping paper with no overlap. The net of the box is shown on the right. How many square centimeters of wrapping paper are needed to cover the surfaces of the box?
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A pyramid has a square base. Each side of the base is 9 cm. The slant height of each triangle is 14 cm. Calculate the surface area.
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Identify the shape that will be angled cross-section of a rectangular pyramid.
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Identify the shape that will be angled cross-section of a rectangular pyramid.
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Name the shape that would result from slicing a rectangular pyramid parallel to the base
Since the pyramid is rectangular, this means that the base of the pyramid is a rectangle. Therefore, if we slice it parallel to the base, we’ll get a cross section which will look like the base of the pyramid, i.e., a rectangle.
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From the given figure, we can observe that the plane cuts the prism making an angle of 0 degrees with the base of the prism. Thus, we’ll get a cross section which will be similar to the base of the prism, i.e., a triangle.
Describe the cross section.
From the given figure, we can observe that the plane cuts the prism making an angle of 0 degrees with the base of the prism. Thus, we’ll get a cross section which will be similar to the base of the prism, i.e., a triangle.
Describe the cross section.
The plane cuts the cone at an angle which is not parallel to the base of the cone, this is the reason why we are getting an oval. If the plane did cut the cone making 0 degrees with the base of the cone, then we would have got a circle.
Describe the cross section.
The plane cuts the cone at an angle which is not parallel to the base of the cone, this is the reason why we are getting an oval. If the plane did cut the cone making 0 degrees with the base of the cone, then we would have got a circle.
Find the number of faces the following prism has.
From the given figure, we can see that there are a total of 7 faces of the prism. 5 of them re at the sides ( 3 of which are visible from the front and 2 of which are visible from the back) and 2 of them are at the top and bottom respectively.
Find the number of faces the following prism has.
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