SOLUTION: The leg of an isosceles triangle is 6 more than twice the base, if the perimeter is 42cm find the length of its leg and its base

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Question 984463: The leg of an isosceles triangle is 6 more than twice the base, if the perimeter is 42cm find the length of its leg and its base
Answer by Cromlix(4381) About Me  (Show Source):
You can put this solution on YOUR website!
Hi there,
Make base = 'x'
So, Leg = 6 + 2x
Perimeter = 2(Leg) + base
42 = 2(6 + 2x) + x
42 = 12 + 4x + x
Collect like terms:
4x + x = 42 - 12
5x = 30
x = 6
Base = 6cm
Leg = 18cm
Hope this helps you:-)