Question

. The perimeter of an isosceles triangle is 42 cm. Its base is 2/3times the sum of equal side Find the length of each side of the triangle​

Answer 1

Answer:

The length of the each equal side of the isosceles triangle is 12.6 cm and the base is 16.8 cm

Step-by-step explanation:

Let the length of the each equal side of the isosceles triangle is a cm.

Therefore, the sum of the equal side of the triangle is 2a cm.

Therefore, its base = 2a × 2/3 =  4a/3

Perimeter = 42 cm

Therefore, a + a + 4a/3 = 42

               ⇒ 10a/3 = 42

               ⇒ 10a = 126

               ⇒ a = 12.6 cm

Therefore base = 4× 12.6 / 3 = 16.8 cm