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Answer :

Answer:

m∠7 = 64°

Step-by-step explanation:

∠7 and ∠8 are supplementary meaning they add up to 180°.

m∠7 + m∠8 = 180°

m∠7 + 116° = 180°

m∠7 = 64°

Answer:

180-116=64

Step-by-step explanation:

Angles sums should be 180 since it is straight angle

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