Question

The difference of semi-perimeter and sides of a triangle are 150 cm, 100 cm and 20 cm. Find the area of the triangle.​

Answer 1

Answer:

Let a=20cm,b=15cm,c=9cm

And semi-perimeter =S

Now, S=

2

a+b+c

=

2

20+15+9

=

2

44

=22cm

∴ Semi-perimeter of triangle is 22cm.