SOLUTION: In an isosceles triangle, two sides are equal. The third side is 75% of the length of one of the equal sides. Find the length of each side when the perimeter is 165cm.

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Question 94306: In an isosceles triangle, two sides are equal. The third side is 75% of the length of one of the equal sides. Find the length of each side when the perimeter is 165cm.
Found 2 solutions by stanbon, edjones:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
In an isosceles triangle, two sides are equal. The third side is 75% of the length of one of the equal sides. Find the length of each side when the perimeter is 165cm.
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Let one of the equal sides be "x"
EQUATION:
x + x + 0.75x = 165
2.75x = 165
x = 60
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Two of the sides are each 60cm
The 3rd side is 0.75*60 = 45cm
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Cheers,
Stan H.

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
Let side a=x b=x c=.75x
Perimeter (P)=a+b+c=165 cm.
So x+x+.75x=165
2.75x=165
divide both sides by 2.75 x=60
Side a=60, b=60, c=.75*60=45
Ed Jones