3 years ago

PLEASE HELP FAST!!!!!!!! WILL MARK BRAINLIEST FOR CORRECT ANSWER!

Mathematics

1 answer:

nexus9112 [7]3 years ago

7 0

Answer:

∠B = 41°

Step-by-step explanation:

∠BCD is an exterior angle of the triangle

The exterior angle is equal to the sum of the 2 opposite interior angles, thus

∠A + ∠B = 113

72 + ∠B = 113 ( subtract 72 from both sides )

∠B = 41°

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