Question

rectangle.
the
9. Two equal sides of an isoscles triangle are each 2 cm more than thrice the third side. If
the perimeter of triangle is 67 cm, find the lengths of its sides.
Length of a​

Answer 1

Answer:

The lengths of it's side are 29cm, 29cm and 9cm

Step-by-step explanation:

Let the sides of triangle be = x cm

Third side of the triangle be = y cm

Now,

= x = 3y + 2 (i)

Perimeter of the triangle = 67 cm = x + x + y = 67 cm = 2x + y = 67 cm

From equation (i)

= 6y + y + y = 67

= 7y + y = 67

= y = 9 cm

From equation (i)

= x = 3y + 2

= 3 × 9 + 2 = 29 cm

• Hence, the length of its sides are 29 cm, 29 cm and 9 cm