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blondinia [14]
3 years ago
13

If angle D measures 31 degrees, find the measure of angle B.

Mathematics
1 answer:
Brilliant_brown [7]3 years ago
6 0

Step-by-step explanation:

step 1. <B is a central angle of the circle

step 2. <D is an inscribed angle of the circle

step 3. when a central angle and inscribed angle have common endpoints the central angle is twice the inscribed angle

step 4. <B = 2*<D

step 5. <B = 2*31 = 62°

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