Question

The perimeter of an isosceles triangle is 15.6m. Find the lengths of its sides, if: The base is 3m bigger than a leg ____m, ___m, _____m

Answer 1

Isosceles - both legs are equal

Let’s label the legs x
Let’s label the base x + 3 (because it is 3m bigger)

X + X + X + 3 = 15.6
X + X + X = 12.6
3X = 12.6
X = 12.6/3
X = 4.2

Then substitute this value for X, so the answers are:

4.2m, 4.2m, 7.2m