SOLUTION: the length of one of the equal legs of an isosceles triangle is 8cm less than 4 times the length of the base. If the perimeter is 29cm, find the length of one of the equal legs.
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Question 84241: the length of one of the equal legs of an isosceles triangle is 8cm less than 4 times the length of the base. If the perimeter is 29cm, find the length of one of the equal legs. Answer by vertciel(183) (Show Source):
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We'll denote variables for the unknowns:
Base = x
Length = 8cm less than 4 times the length of the base
= 4x - 8
Perimeter = sum of all sides
x + 4x - 8 + 4x - 8 = 29
Find x, substitute it into the base and length and you have your answers.
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