Question

8. State Heron's formula. Using this formula find the area of a triangular board whose sides are in the ratio 2:3:5
and its perimeter is 100m​

Answer 1

Answer:

Hero formula : √S(S-a) (S-b) (S-c)

S= Perimeter/2

Perimeter =2x+3x+5x

100m=10x

x=10m

a=10m*2=20m

b=10m*3=30m

c=10m*5=50m

S according to question = 100m/2=50m

Area=√50(50-20)(50-30)(50-50)

=√50*30*50*0

=√0

=0 square metre