Question

The Base of isosceles triangle is 16cm and it's perimeter is 36cm find the length of the equal side

Answer 1

let the 2 equal sides be x
perimeter=a+b+c
16+x+x=36
2x=20
x=10
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Answer 2

Perimeter =sum of all sides
Therefore,36=16+2x(As 2sides r equal we can take them as X and X=2x)
36-16=2x
20=2x
20/2=x
10=x.......
Therefore,Equal sides=10cm