Question

The two equal sides of an isosceles triangle is thrice the third side. If the perimeter is 35 cm, then the length of equal sides is __________

Answer 1

5

Explanation:

First the question said that two equal sides of the isosceles triangles is thrice the third side. This means that the two equal sides is 3x while the third side should be represented as x

Secondly, add the three parts together which = 3x+3x+x =7x

Thirdly, then divide both sides by 7= 7x/7 *35/7

Making x=5