What is the measure of angle B in degrees

Kingamajick asked Jul 11, 2023

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Kingamajick asked Jul 11, 2023

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5 votes

Angle C and the 112 degree angle are supplementary, so angle C measures 180-112=68 degrees.

This means that by the exterior angle theorem,
$m\angle B=51^(\circ)+68^(\circ)=\boxed{119^(\circ)}$

Sceiler answered Jul 14, 2023

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