The perimeter of a trianlge is 8x + 9 and two sides are 3x +1 and 2x + 1. Find the third side.

Question

The perimeter of a trianlge is 8x + 9 and two sides are 3x +1 and 2x + 1. Find the third side.

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Emma 5 months 2021-07-17T14:09:48+00:00 2 Answers 0 views 0

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    0
    2021-07-17T14:10:56+00:00

    Answer:

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    in \:  \: isosceles \: traingle \: two \: sides \: are \: equal \: , \\ so, \\ 3x  - 1 = 2x + 2 \\ x = 3 \\  \\ perimeter = sum \: of \: all \: sides \:  \\  \\  = 3x - 1 + 2x + 2 + 2x \\  = 7x + 1 \\ substituting \: value \: of \: x \\ perimeter = 7(3) + 1 \\  = 21 + 1 \\  = 22 \\ thus \: x = 3 \: and \: perimeter \: of \: a \: traingle = 22square \: units

    0
    2021-07-17T14:11:07+00:00

    Answer:

    c=p-a+b=(8x+9)-(3x+1)+(2x+1)=7x+9

    Step-by-step explanation:

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