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monitta
3 years ago
14

Please help me with this, I need to find the missing angle of both of the triangles. Thank you. :))

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
5 0
The missing side of ABC = 13
The missing side of FDE = 24



Pythagorean Theorem: a² + b² = c²

Pythagorean Theorem is for right-angled triangle only.

The missing side of ABC is:
12² + 5² = AC²

169 = AC²

AC = √169

AC = 13


The missing side of FDE is:
DE² + 10² = 26²

DE² = 26² - 10²

DE² = 576

DE = √576

DE = 24
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