Question

the base of isosceles triangle is greater than equal sides by 9 units .the perimeter of the triangle is 99units.what are the equal sides.​

Answer 1

Answer:

Let the equal sides be x

Then the unequal side=x+9

perimeter = x + x + x+9 = 99

⇒3x + 9= 99

⇒3x = 90

⇒x = 90/3 = 30

The equal sides = 30 units