## anonymous 5 years ago please help me on this one: A leather coin purse has the shape of a triangle. Two sides are equal in length and the third side is 3 centimeters shorter than on and one half times the length of the equal sides. The perimeter is 28.5 centimeters. Find the lengths of the sides.

1. anonymous

$perimeter=\sum_{}^{} legs$ $28.5=x+x +x/2$ $x=11.4$ $l _{1}=l_{2}=11.5cm$ $l_{3}=11.5/2=5.75$

2. anonymous

$perimeter=\sum_{}^{} legs$ $28.5=x+x +x/2$ $x=11.4$ $l _{1}=l_{2}=11.5cm$ $l_{3}=11.5/2=5.75$