Question

The length of the base of an isosceles triangle is x. The length of a leg is 3x−6. The perimeter of the triangle is 23. Find x.

Answer 1

To find the perimeter, you add up the measures of all the sides. Since the legs in an isosceles triangle are congruent, you can say that 3x - 6 + 3x - 6 + x = 23. Then you can solve.

7x - 12 = 23

7x = 35

x = 5

Answer 2

My answer is 0.10344827586.