# geometry

posted by
**carry** on
.

The perimeter of an isosceles triangle is 37 in. The lengths of the two

equal legs are 6 in. less than 3 times the length of the base. Find the lengths of the three sides.

37=2L+2W

W=3W-6

do i have this equation wrote right

when i try to solve it

the answers i get is

w=3

l=15.5

I feel like i maybe missing some thing here can anyone help me

Your equation 37=2L+2W would be used for a rectangle, not a triangle.

let the base be x in

then the other sides are 3x-6 each

now add them up

3x-6 + 3x-6 + x = 37

..

..

x=7

so the base is 7, the other sides are 15 each.

everything checks out!