Question

Find the surface area of the pyramid .The surface of the pyramid is _ in2 (Type a whole number .)

Answer 1

Given the figure of a square pyramid

The area pf the base =area of the square of side 14 in =

$14\cdot14=196in^2$

the area of the sides = 4 times the area of a triangle of a base of 14 in and a height of 12 in

so, the area of the sides =

$4\cdot\frac{1}{2}\cdot\text{base}\cdot\text{height}=4\cdot\frac{1}{2}\cdot14\cdot12=336in^2$

So, the surface area of the pyramid =

$196+336=532in^2$

So, the answer will be A = 532 in^2