If a pyramid prism has a height of 12 ft and a square base with side = 10 ft. What is the surface are of the pyramid?
160 sq. ft
1,340 sq. ft
240 sq. ft
340 sq. ft

A = 360 ft²

Step-by-step explanation:

Assuming a regular symmetric pyramid

Area will be that of a square of side 10 plus four triangles with base 10 and face height √(12² + (10/2)²) = 13

A = 10² + 4(½(10)(13))

A = 360 ft²

Which is NOT one of your answer choices.

IF, when describing the pyramid, the height given is actually the face SLOPE HEIGHT, THEN the answer is 10² + 4(½)10(12) = 340 ft²

the true pyramid height in this case is

h = √(12² - 5²) = 10.90871... ft.

i dont know their was no answer choice jiggaboo

(im black)

step-by-step explanation:

13875138answer:

step-by-step explanation:

use a calculator!