First angle of a triangle is 20 more than the second angle. The second angle of the triangle is 2 times the 3rd angle. Find all the angles o

Question

First angle of a triangle is 20 more than the second angle. The second angle of the triangle is 2 times the 3rd angle. Find all the angles of the triangle

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Julia 1 month 2021-09-16T14:23:58+00:00 2 Answers 0 views 0

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    0
    2021-09-16T14:25:06+00:00

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    Your three angles total 180, right?

    s = f + 20

    t = 2s = 2(f + 20) = 2f + 40

    f + f + 20 + 2f + 40 = 180

    4f + 60 = 180

    4f + 60 – 60 = 180 – 60

    4f = 120

    4f/4 = 120/4

    f = 30

    s = 30 + 20 = 50

    t = 2(50) = 100

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    0
    2021-09-16T14:25:41+00:00

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    Your three angles total 180, right?

    s = f + 20

    t = 2s = 2(f + 20) = 2f + 40

    f + f + 20 + 2f + 40 = 180

    4f + 60 = 180

    4f + 60 – 60 = 180 – 60

    4f = 120

    4f/4 = 120/4

    f = 30

    s = 30 + 20 = 50

    t = 2(50) = 100

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