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What is the measure of angle B in degrees

What Is The Measure Of Angle B In Degrees class=

Sagot :

Medunno13idn

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, [tex]m\angle B=51^{\circ}+68^{\circ}=\boxed{119^{\circ}}[/tex]

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