Question

Find the length of each of the equal sides of the isosceles triangle if the perimeter and unequal side are:a)Perimeter =30cm,Unequal side=8cm
b)Perimeter=55cm,unequal side=15cm.​

Answer 1

AS THE BOTH SIDES ARE EQUAL TAKE IT AS X.

PERIMETER OF TRIANGLE =A+B+C

a)2x +8= 30

302x=22x

x=11

b)2x+15=55

2x=40

x=20