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8 February, 19:40

The side lengths of a triangle are given by the expressions 2x + 5, 5x + 4, and 3x + 4. Find the perimeter of the figure if

X=7

A. 75 units

B. 54 units

C. 62 units

D. 83 units

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Answers (2)
  1. 8 February, 20:03
    0
    D. 83 units because 19 + 39 + 25 = 83
  2. 8 February, 20:05
    0
    option D

    Step-by-step explanation:

    perimeter of a triangle=a+b+c

    a=2x + 5

    b=5x + 4

    c = 3x+4

    perimeter of a triangle = 2 (7) + 5 + 5 (7) + 4 + 3 (7) + 4

    perimeter of a triangle=19+39+25

    perimeter of a triangle = 83
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