Question

Jillian wants to find the surface area of a pyramid. the base is a square with sides that are 4 inches long the other faces are isosceles triangles. the ratio of the height of each triangle to its base is 3:2. part a: give the Base length and the height of each triangular face part b : find the combined area of the Triangular faces part c: find the surface area of the pyramid

Answer 1

Part a:-
The base of each triangle is 4 inches long. 
Their  height is 3/2 * 4 = 6 inches.

b 
The combined  area of the triangular faces = 4 * 1/2 * 4 * 6 =  48 sq ins

c
Surface area of the pyramid =  48 + area of base = 48 + 16  = 64 sq ins.