Leonard is going to construct a pyramid with cardboard for math class. Find how many square inches (in.2) of cardboard he will need. Use 4(1/2)bh+b2 , where b , the base of the pyramid, is 3 in. and h , the height of the pyramid, is 8 in.(1 point)
in.2
To find the number of square inches of cardboard Leonard will need, we can substitute the values of b and h into the formula for the surface area of the pyramid.
Surface area of pyramid = 4(1/2)bh + b^2
Substituting b = 3 in. and h = 8 in. into the formula:
Surface area of pyramid = 4(1/2)(3 in.)(8 in.) + (3 in.)^2
= 4(1/2)(24 in.^2) + (9 in.^2)
= (48 in.^2) + (9 in.^2)
= 57 in.^2
Therefore, Leonard will need 57 square inches of cardboard.