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37 votes
37 votes
Use the net to find the surface area of the square pyramid.

A)
130 in 2
B)
204 in?
C)
272 in2
D)
304 in 2

Use the net to find the surface area of the square pyramid. A) 130 in 2 B) 204 in-example-1
User Sergii Zhevzhyk
by
2.9k points

1 Answer

16 votes
16 votes

Answer:

D) 304 in^2

Explanation:

The relevant area formulas are ...

A = 1/2bh . . . . area of a triangle with base b and height h

A = s^2 . . . . . . area of a square with side s

__

The figure consists of four identical triangles with base 8 and height 15. The area of each one is ...

A = (1/2)(8)(15) = 60

The square has side length 8, so its area is ...

A = 8^2 = 64

The total area of the figure is ...

4(60) +64 = 304 . . . . square inches

User Zeema
by
3.1k points