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7 June, 17:06

What is the value of x?

In ∆ABC, m∠A = (3x + 7) °, m∠B = (2x - 8) °, and m∠C = (5 - x) °

A. 29

B. 40

C. 46

D. 44

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Answers (1)
  1. 7 June, 19:14
    0
    So,

    1) 3x+7+2x-8+5-x=180

    2) 4x+4=180

    3) 4x=176

    4) x=44

    Answer is D
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