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Lera25 [3.4K]
2 years ago
8

Two sides of a triangle have the same length. The third sido measures 7 m less than twice the common length. The perimeter of th

e triangle is 17 m. What are the lengths of the three sides?
Mathematics
1 answer:
lesantik [10]2 years ago
5 0

Answer:

  6 m, 6 m, 5 m

Step-by-step explanation:

If x is the common length then the perimeter is the sum of side lengths:

  x + x + (2x-7) = 17

  4x = 24 . . . . . . . . . add 7

  x = 6 . . . . . . . . . . divide by 4

  2x -7 = 12 -7 = 5 . . . find the length of the 3rd side

The side lengths are 6 m, 6 m, and 5 m.

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