Use the net to find the surface area of the regular pyramid. plz, help I'm stuck.

Question

asked Apr 4, 2021 111k views

2 Answers

Unistudent · Answer 1 · 2021-04-06T13:13:11+0000

Answer:

178.3 mm²

Explanation:

Surface area = Base area + 3 x side triangles area

Sₐ = 43.3 + 3 x (1/2 x (10 x 9)) = 43.3 + (3 x 45) = 178.3