Question

Marissa needs to paint all the faces and the base of a model pyramid she made for her history project. The dimensions of the pyramid are shown here. What is the total surface area of the pyramid?

140 in2
180 in2
240 in2
260 in2

Answer 1

D- 260 in²

Explanation:

Hope this helped

Answer 2

So first off we have the formula for the surface area A+1/2*p*s first we multiply 1/2*40(perimeter of base) to get 20 then multiply by 8 to get 160 then add 100(which is the area of base) so final answer is 260 hope this helps sorry it took me a while.