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What is the measure of angle 1?

What is the measure of angle 1?-example-1
User Rino Raj
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2 Answers

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Since there was a ray drawn from A through C the exterior angle of angle C is angle 1. Any straight line should equal to 180 degrees.
User Tom Harvey
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1 vote

Answer:

option a. 90°

angle 1=90°

User Paulus Potter
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