Question 283124

We have three unknowns (a,b,c ) so we need three equations.
a+b+c=70 perimeter is 70
c=a+b-4 longest side c is 4cm less than the sum of the other two sides a+b
c=2a-9 twice the shortest side a is 9 cm less than the longest side c

a+b+c=70 
c=a+b-4
c=2a-9
I leave the details to you.


a = 12,   b = 25,   c = 33
Any problems let me know.