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Nonamiya [84]
3 years ago
10

Some one help me understand

Mathematics
1 answer:
elena-s [515]3 years ago
6 0

Answer:

Because ΔABC ≅ ΔDEC, ∠B ≅ ∠E by CPCTC which means:

2x + 31 = 7x - 24

-5x = -55

x = 11°.

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