Question

The sides of a triangle are 2a+1, 3a+2 4a_1 cm. Find the length of each side if the perimeter of triangle is92 cm.

Answer 1

Therefore, perimeter of triangle = sum of all side

Or, 92 = 2a+1+3a+2+4a-1

Or, 92 - 2 = 9a

Or, a = 90÷9

Or, a = 10

Length of each side = 2a+1 = 2 * 10 + 1 = 21 cm.

= 3a+2 = 3 * 10 + 2 = 32 cm.

= 4a-1 = 4 * 10 - 1 = 39 cm.