Question

A field is in the form of the number 8 .the top portion is a circle of radius 14 m and the bottom portion is a circle of radius 21 m.One metre of the circumference of the both the circles touch each other.while going around the field ,how much total distance does one have to walk,leaving out this 1 metre distance?

Answer 1

Answer:

one have to walk the distance

{2π.(14+21)-1} m

=(2π.35-1) m

=(2.22.35/7-1) m

=(220-1) m

=219 m