SOLUTION: the perimeter of a triangle is 30 cm. one side is 7 centimeters longer than the shortest side. find the length of the shortest side. find the length of each side of the triangle.

Algebra ->  Triangles -> SOLUTION: the perimeter of a triangle is 30 cm. one side is 7 centimeters longer than the shortest side. find the length of the shortest side. find the length of each side of the triangle.      Log On


   

Question 308808: the perimeter of a triangle is 30 cm. one side is 7 centimeters longer than the shortest side. find the length of the shortest side. find the length of each side of the triangle.
Found 2 solutions by JBarnum, Alan3354:
Answer by JBarnum(2146) About Me  (Show Source):
You can put this solution on YOUR website!
P=30
side a=+7%2Bb
a%2Bb%2Bc=30
a%5E2%2Bb%5E2=c%5E2
sqrt%28a%5E2%2Bb%5E2%29=c
sqrt%28%287%2Bb%29%5E2%2Bb%5E2%29=c
sqrt%28b%5E2%2B14b%2B49%2Bb%5E2%29=c
sqrt%282b%5E2%2B14b%2B49%29=c
a%2Bb%2Bc=30
%287%2Bb%29%2Bb%2B%28sqrt%282b%5E2%2B14b%2B49%29%29=30
%287%2B2b%2Bsqrt%282b%5E2%2B14b%2B49%29%29=30
im to tired to finnish sry ill try this another time

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Insufficient data.
This cannot be solved with the info given.
If it's a right triangle, or isoceles, it can be, but you didn't say it was either.