Question

An isosceles triangle has one side of length 40 and one side of length 50. What is the smallest possible value that the perimeter of the triangle could be?

Answer 1

Answer: 130 units.

Explanation:

There are two cases:-

• Case 1: When, two equal sides are of 50 units each and the unequal side is 40 units.

∴ Perimeter = 50 + 50 + 40 cm = 140 units.

• Case 2: When, two equal sides are of 40 units each and the unequal side is 50 units.

∴ Perimeter = 50 + 40 + 40 cm = 130 units.

So, the smallest possible length that the perimeter of the triangle could be of is 130 units.