The base of an isosceles triangle is 43 cm. The perimeter of the triangle is 6215 cm. What is the length of either of the remaining equal sides?
Solution:
Let the length of equal sides be x cm. Perimeter = x + x + third side 2x + 43 = 6215 Transport 43 to RHS 2x = 6215 - 43 2x = 6172 Divide both sides by 2, => x = 6172 / 2 => x = 3086 cm