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15 October, 02:24

In triangle abc b is a right angle and a is 20 degrees greater than

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  1. 15 October, 02:41
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    Step-by-step explanation:

    let ∠c=x

    ∠a=x+20

    ∠a+∠b+∠c=180

    x+20+x+90=180

    2x=180-110=70

    x=35

    ∠c=35°

    ∠b=90°

    ∠a=35+20=55°
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