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March 26, 2017

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Find the longest side of triangle ABC, if measurement A=70, measurement B=2x-10, and measurement C=3x+20.

  • geometry - ,

    5x-10=80 x=16

    B=2(16) - 10 = 22

    C= 3(16)+20 = 68

    I'm not sure if that's right or not.

  • geometry - ,

    I will assume that by "measurement A=70" you are referring to angle A

    then 70 + 2x-10 + 3x+20 = 180
    5x = 100
    x = 20

    then angle B = 30 and
    angle C = 80

    knowing that in any triangle, the largest side is opposite the largest angle, the largest side must be opposite angle C, which would be AB

  • geometry - ,

    Find the pattern
    Give the formula

    0 -- 8
    1 -- 11
    2 -- 14
    3 -- 17
    4 --
    5 --
    50 --
    n --

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