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PLs help me. I need to find the measure of B

PLs help me. I need to find the measure of B-example-1
User Mariela
by
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1 Answer

5 votes

Answer: 52

Explanation:

cos=7/11.4 -> cos-1(cosB) = cos-1(7/11.4)

m<B = cos-1(7/11.4) = 52

User Yiyi You
by
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