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12 June, 18:39

Find the measure of angle 7

Measure of angle 7 = 2x + 15

Measure of angle 8 = 3x

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  1. 12 June, 20:38
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    Assuming ∠6 and angle ∠8 are vertical angles, then

    m∠6 = m∠8

    m∠6 + m∠7 = m∠7 + m∠8 = 180

    2x + 15 + 3x = 180

    5x = 165

    x = 33

    m∠7 = 2 (33) + 15 = 81

    m∠8 = 3 (33) = 99

    m∠6 = m∠8 = 99
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