Posted by Anonymous on Thursday, December 2, 2010 at 12:03am.
the short side of an isosceles triangle is 16cm long. by increasing each side length by 24 cm doubles the perimeter.how long are the other sides of the original triangle? ..

math  L, Thursday, December 2, 2010 at 12:28am
Make an equation to help you solve!
We know that:
Side1=16cm
Side2=Side3
Let's name Side1 x, and Side2 and Side3 (Because they are the same) y.
Perimeter=Side1+Side2+Side3
Perimeter=x+y+y
Perimeter=x+2y
Sub in your value for x:
P=16+2y
Now, we also know that:
2P=(Side1+24cm)+(Side2+24cm)+(Side3+24cm)
2P=x+2y+72
2P=2y+72+16
2P=2y+88
Let's isolate for P:
2P=2y+88
(2P)/2=(2y+88)/2
P=y+44
Now we can equate the two equations to find y, because P=P!
Good luck (:

math  Anonymous, Monday, December 1, 2014 at 6:21pm
yolo
Answer This Question
Related Questions
 Math  the short side of an isosceles triangle is 16cm long increasing each side...
 Grade 6 math  One side of an isosceles triangle is 15 cm shorter than the other...
 perimeter  a pennant is shaped like an isosceles triangle.the short side is ...
 Math (Geometry)  The perimeter of right triangle ABC is equal to the perimeter ...
 Algebra 1  Two sides of a triangle have the same length. The remaining side is ...
 Algebra 1  Two sides of a triangle have the same length. The remaining side is ...
 geometry  The perimeter of right triangle RST is equal to the perimeter of ...
 Math  Two equilateral triangles are sitting sidebyside. The length of one ...
 algebra  an isosceles triangle is one in which two sides are the same length. ...
 algebra  a triangle has a perimeter of 126 centimeters, each of the 2 longer ...
More Related Questions