What is the surface area of this triangular pyramid

Question

asked Nov 11, 2019 40.5k views

1 Answer

AlanF · Answer 1 · 2019-11-16T06:04:08+0000

Equilateral Triangle Height = side * square root (3) / 2 =

12 * 0.8660254038 = 10.3923048454

Triangle Area = 12 * 10.3923048454 * .5

= 62.3538290724

Pyramid Area = 62.3538290724 * 4 sides =

249.4153162896