What is the measurement of angle B
2 answers:
Angles B and D are congruent so:
(360-112-74)/2=87°
The measure of the angle is A, 87.
The total of all the angles have to add up to 360 and we know that the 2 missing angles have to be the same because the congruent lines.
112+74=186. 360-186=174/2=87
Hope this helps and have a great day! :D
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