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oksano4ka [1.4K]
2 years ago
7

Please help me Find X

Mathematics
1 answer:
solmaris [256]2 years ago
7 0

The labeled angle is what's called an inscribed angle. There's a theorem (fittingly called the inscribed angle theorem) that says the measure of this angle is half the measure of the circular arc that it subtends.

In this case, the angle is subtended by an arc measuring 180°. So

(4x + 6)° = 1/2 • 180°

4x + 6 = 90

4x = 84

x = 21

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