Question

4. Find the perimeter of a triangle
(a) having sides 10 cm, 12 cm and 15 cm.
(b) having each side as 14 cm.
(c) isosceles triangle having equal sides as 40 cm and third side as 20 cm.​

Answer 1

Perimeter of triangle = Sum of all three sides = 10 cm + 14 cm + 15 cm = 39 cm Thus, perimeter of triangle is 39 cm.