Question

If the semi perimeter of an isosceles triangle is 28 cm and the length of uncommon side is 16cm, what will be the length of common side?​

Answer 1

Answer: 20 is the length of the common side

Step-by-step explanation:

semi perimeter=28

= semi perimeter=perimeter/2

=28x2= perimeter

=56=perimeter

perimeter= sum of all three sides

perimeter= x+x+16

56=2x+16

2x=56-16

2x=40

x=40/2

x=20