Leonard is going to construct a pyramid with cardboard for math class. Find
how many square inches of cardboard he will need. Use ,
where , the base of the pyramid, is 3 in. and , the height of the pyramid, is 8
in. (1 point)
(in. )
2 4 ( ) bh +
1
2
b
2
The formula to find the surface area of a pyramid is (1/2)bh + b^2.
Using the given values, b = 3 in and h = 8 in.
Plugging these values into the formula, we find:
(1/2)(3 in)(8 in) + (3 in)^2 = 12 in^2 + 9 in^2 = 21 in^2
Therefore, Leonard will need 21 square inches of cardboard to construct the pyramid.