Question

Two cross roads each of width 4m cut at right angles through the centre of a rectangular park of length 80 m and b 60 m and parrelel to its sides find the area of the roads also find area of the park excluding cross roads give the answer in hectares​

Answer 1

Answer:

A and B are two roads in the park.

area covered by road A=700×10(m

2

)

=7000 m

2

area covered by road B=300×10 m

2

=3000 m

2

Common area covered by road A and B=10×10 m

2

=100 m

2

area covered by roads =7000 m

2

+3000 m

2

−100 m

2

=10000 m

2

−100m

2

=9900 m

2

=0.99 hectare

area of the park =700×300 m

2

=210000 m

2

area of the park encluding cross Road =210000 m

2

−9900 m

2

=200100 m

2

=20.01 hectare