The perimeter of an isosceles triangle is 24 the length of its congruent side is 13 less than twice the length of its base find the lengths of all sides of triangle
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Step-by-step explanation:
Let, the base be x.
Congruent sides are 13 less than twice the length of it's base.
= 2x-13
Perimeter = Sum of all three sides
=> 24 = x+2x-13+2x-13
=> 24 = 5x-26
=> 24+26 = 5x
=> 50 = 5x
=> 50/5 = x
=> 10 = x
x = 10
2x-13 = 2*10-13 = 20-13 = 7
Sides are 10, 7 and 7.
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