Question

Q.The perimeter of a triangle is 49 cm. One side is 7 cm more than the second

side and 5 cm less than the third side. Find out the lengths of three sides?​

Answer 1

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.
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