The perimeter of the triangle is 9 cm. One side is 2 times larger than the other and 1 cm larger than the third.
| November 22, 2020 | education
The perimeter of the triangle is 9 cm. One side is 2 times larger than the other and 1 cm larger than the third. Find the smaller side of the triangle.
We introduce the notation x-smallest side of the triangle
Let a = x, then b = 2x, and c = x + 1.
p = a + b + c
The equation
x + 2x + x + 1 = 9
4x + 1 = 9
4x = 8
x = 2
Answer: 2 cm.
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