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Find the measure of the numbered angles

Find the measure of the numbered angles-example-1

1 Answer

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Answer:

60°

Explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles from 180 for ∠1

∠1 = 180° - (90 + 30)° = 180° - 120° = 60°

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