Question

one side of an isosceles triangle is three times as long as another side of the triangle. If the perimeter of the triangle is 140, then what is the length of the base of the triangle please answer quick

Answer 1

20

Explanation:

If length of the base is x, then the other sides are 3x

so x + 3x + 3x = 140

7x = 140

x = 140/7 = 20