The perimeter of the triangle below is 80 units. Find the length of side PR

asked Feb 9, 2022 192k views

2 votes

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6 votes

Answer:

Explanation:

The perimeter is equal to sum of side lengths

4x + z + 3 + 5z - 3 = 80 add like terms

10z = 80 divide both sides by 10

z = 8 PR is 4z so 8*4 = 32

Futian Shen answered Feb 16, 2022

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