The perimeter of triangle ABC is 62 cm. BC = 17 cm AB = BC. Find the length of side AB.

univerkov | February 1, 2021 | education

1. If two sides in a triangle are equal to each other, such a triangle is called isosceles.

2. The perimeter of a triangle is equal to the sum of all sides of the triangle.

3. Let’s find what the length of the side AB is equal to if the side BC = 17 cm.

62 – 17 = 45 cm.

45: 2 = 22.5 cm.

Answer: the length of the side AB = 22.5 cm.

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