PLEASE HELP I WILL GIVE BRAINLIEST!!!!!!!!!!!!!
If m∠A=59 and m∠3=81°, what is m∠B? m∠B= _[blank]_°
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Answer:
22 = <B
Step-by-step explanation:
The exterior angle of the triangle is equal to the sum of the 2 opposite interior angles
<3 = <A + <B
81 = 59+<B
Subtract 59 from each side
81-59 = 59+<B - 59
22 = <B