word problems

Question

THE LENGTHS OF THE THREE SIDES OF A TRIANGLE ARE X CM, (X+1) CM AND (X+2) CM RESPECTIVELY. FIND THE LENGTHS OF THE THREE SIDES IF THE PERIMETER OF THE TRIANGLE IS 135 CM.

Answer 1

Perimeter is defined as the sum of all the sides of a polygon.

 

X + X + 1 + X + 2 = 135

 

3X + 3 = 135

 

3X = 132

 

X = 44

 

The sides are then 44 cm, 45 cm, and 46 cm.