Each of the 2 equal sides of an isosceles triangle is twice as large as the third side. If the perimeter of the triangle is 30 cm, find the length of each side of the triangle.

Question

Shiksha Nation · Accepted Answer

Let the length of the third side be x cm.

Each equal side = 2x cm.

As per the condition of the question, we have

Perimeter = x + 2x + 2x = 30

⇒ 5x = 30

⇒ x = 6

Thus, the third side of the triangle = 6 cm

and other two equal sides are 2 × 6 = 12 cm each

Each of the 2 equal sides of an isosceles triangle is twice as large as the third side. If the perimeter of the triangle is 30 cm, find the length of each side of the triangle.

Verified Answer