Question

Find the surface area of the regular pyramid.

Answer 1

Area of all triangles : 10 x 12 = 120 120 divided by 2 = 60 then, 60 x 4 = 240

Area of the Square: 12 x 12 = 144

Surface Area of the Pyramid: 240 + 144 = 384 square millimeters!!

Hope This helps :)