Question

Quadrilateral ABCD ​ is inscribed in this circle.

What is the measure of angle B?

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m∠B= °

Answer 1

The answer is 132

Explanation:

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Answer 2

Assuming the sum of the opposite angle would be 180. We can easily calculate for x and ultimately solve for the angle of B. We do as follows

B + D = 180
3x-12 + x = 180
4x - 12 = 180
4x = 192
x = 48 degrees

Therefore angle B would have a measurement of 132 degrees. Hope this helps.