# Perimeter of a triangle is 49cm.one side is 7cm longer than another side and 5cm shorter than the third side. find the sides.

2
by tejum8

2015-07-12T07:38:31+05:30

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Let the third side be x
one side is x-7
another side is x+5
we know that perimeter of triangle is 49cm.
x+x-7+x+5=49
3x-2=49
3x=49+2
x=51/3
x=17
one side is 17cm
second side is x-7=17-7=10
third side is x+5=17+5=22.
2015-07-12T07:57:29+05:30

### This Is a Certified Answer

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Let the third side=x
one side = x-7
another side=x+5
perimeter of a triangle =sum of all sides
49cm =x+x-7+x+5
49 =3x-2
49+2 =3x
47 =3x
47/3=x
17 =x
one side=17cm
second side=x-7
=17-7
=10cm
third side=x+5
=17+5
=22cm