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

A) 942 in2
B) 1152 in2
C) 1244 in2
D) 1268 in2

Use the net to find the surface area of the square pyramid. A) 942 in2 B) 1152 in-example-1
User Vashti
by
2.5k points

2 Answers

12 votes
12 votes
the answer would be 1152 i believe
User JaanusSiim
by
2.9k points
24 votes
24 votes

Answer:

B) 1152 in2

Explanation:

Think about the surface area in sections: there is 4 triangles and 1 square

The equation to find the area of a triangle is A = (b x h)/2

b = base h = height

So, to find the area of one of the triangles, you would do:

(24 x 12)/2 = 144

Since the other three triangles are the same area, you only need to multiply what you found by 4 to get all of them.

144 x 4 = 576

Next, find the area of the square in the middle

The equation for a square is A = l x w

l = length and w = width

So to find this area, it is:

24 x 24 = 576

Finally, add the areas of the triangles and the square to find the total area:

576 + 576 = 1152

User Kito
by
3.2k points
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