Question

0.
7. A wheel has radius 42 cm.
lyure (b). (Take it = 3.14)
(a) Find the distance covered in 700 revolutions.
(b) In how many revolutions will it cover a distance of 3 km 960 m?​

Answer 1

Circumference will be the distance covered in one revolution.

Hence,

2πr=2*22/7*42 = 264cm^2

a)Hence in 700

revolutions=700*264=184800cm^2

Now 3km 960m=3000m+960m=3960m

Hence,

Revolutions will be 3960/264=15revolutions

Answer 2

Answer:

circumference =2×22/7×42=264cm

a).in 700 revolution =264×700=184800cm=1848m=1.848km

b).revolution=390000cm/264cm=1477.27revolutions

PLZ MARK AS BRIANLIEST AND THX FOR THE SUPERB QUESTION