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11 December, 04:42

If m//a = 150 and / / a and / / b at supplementary, what is m / / b

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  1. 11 December, 04:55
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    Supplementary angles add up to 180°.

    now, we know that ∡a = 150°, and we also know that

    ∡a + ∡b = 180

    150 + ∡b = 180

    ∡b = 180 - 150.
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