In an equilateral triangle, the base is 7cm and the perimeter is 17cm. Computing the side of the triangle.
| September 7, 2021 | education
Let the length of the side of the triangle be X cm.
Since in an isosceles triangle the sides are equal, and the sum of their lengths is equal to the difference between the perimeter of the triangle and the length of its base, then:
X + X = (17 – 7).
2 * X = 10.
X = 10/2 = 5 cm.
Answer: The length of the side is 5 cm.
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