Friday

July 25, 2014

July 25, 2014

Posted by **edtyyyd** on Thursday, January 13, 2011 at 7:59am.

- geometry -
**MathMate**, Thursday, January 13, 2011 at 8:04amSince the legs of an isosceles triangles are equal, we can equate the lengths and solve for x.

2x+4 = x+8

2x-x = 8-4

x = 4

Substitute x in the expression of the third side and evaluate the length.

**Related Questions**

Geometry - the legs of an isosceles triangle have lengths 2x+4 and x-8 the base ...

math - the legs of an isosceles triangle have lengths x+1 and -x+7. the base has...

Math - Two isosceles triangles have perimeters of 8 and 15 centimeters, ...

algebra - The base of an isosceles triangle and one of its legs have lengths ...

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

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

math - The base of an isosceles triangle is four less than the sum of the ...

geometry - The perimeter of right triangle RST is equal to the perimeter of ...

algebra 1 - The length of the base of a isosceles triangle is one forth the ...

Trig - The length of the base of an isosceles triangle is one fourth the length...