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Musya8 [376]
3 years ago
14

A square pyramid has a lateral area of 107.25 square centimeters and a slant height of 8.25 centimeters. Find the length of each

side of its base.
Mathematics
1 answer:
Elodia [21]3 years ago
6 0
To find the area of the square base, you will use the information given about the area of the lateral side to find the missing base length.

First, divide the total lateral area by 4 because there are 4 congruent lateral faces. 

107.25/4 = 26.8125

Use this in the formula for area of a triangle.

A = 1/2 x b x h
26.8125 = 1/2 x b x 8.25
26.8125 = 4.125b
b = 6.5 cm
The length of the base edge is 6.5 centimeters.
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