Alegaba 2
posted by Joanna .
Two sides of a triangles are equal in length. the length of the third side is three meters less than the sum of the lengths of the other two sides. What is the length of the longest side of the trangle if its perimeter is 29 meter?

S=2L3
29=S+2L=2l3+2l= 4L3
4L=32
L=8
sides: 8,8, 13