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TEA [102]
3 years ago
10

Find the missing length

Mathematics
1 answer:
iren [92.7K]3 years ago
6 0
B^2 = c^2 - a^2
b^2 = 20^2 - 13^2
b^2 = 400 - 169
b^2 = 231
b= square root 231
b = 15.2
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