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miskamm [114]
3 years ago
9

One side of a triangle is 2 times the second side. The third side is 5 feet longer than the second side. The perimeter of a tria

ngle is 81 feet. Find the length of each side.
Mathematics
1 answer:
jonny [76]3 years ago
7 0

Answer:

The length of the side of the triangles are;

First side = 38 ft

Second side = 19 ft

Third side =24 ft

Step-by-step explanation:

To solve the question we are going to take;

Second side is x ft

Since, the first side is 2 times the second side then;

First side of the triangle is 2x ft

Since the third side is 5 ft less than the second side, then;

The third side is (x+5) ft

But, the perimeter of the triangle is 81 ft

Perimeter of a triangle is given by the sum of sides;

Therefore;

x + 2x +(x +5) = 81 ft

4x + 5 = 81

4x = 76

    x = 19 ft

Therefore;

Second side = 19 ft

First side = 38 ft

Third side = 24 ft

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