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If angleA and angleB are supplementary angles, and angleA = 63°, find the measure of angleB. A. B = 27° B. B = 63° C. B = 117° D. B = 153°

Respuesta :

mysticaldogg
C. B = 117° because 63°+117°=180°
JeanaShupp

Answer: C.   B=117°.

Step-by-step explanation:

We know that if a pair of angle are supplementary then their sum is added up to 180 degrees.

Given : angle A and angle B are supplementary angles.

i.e [tex]\angle{A}+\angle{B}=180^{\circ}[/tex]

Also, angle A = 63°

i.e  [tex]63^{\circ}+\angle{B}=180^{\circ}[/tex]

i.e  [tex]\angle{B}=180^{\circ}-63^{\circ}[/tex]

i.e  [tex]\angl{B}=117^{\circ}[/tex]

Hence, the measure of angleB is 117°.

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