Question

Wheel of a car covers a distance of 3520 cm in 20 rotations. Find the radius of the wheel
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Answer 1

Answer:

Radius of the wheel is 28 cm

Step-by-step explanation:

Total distance in 20 rotations =3520 cm

Distance covered in 1 rotation =3520/20

=176 cm

So the circumference of the wheel is 176cm

We know that, circumference = 2×pi×r

176=2×22/7 ×r

r=176/2 × 7/22

r=28 cm

Answer 2

Answer:

28 cm

Step-by-step explanation:

if wheel covers 3520 cm in 20 rotations

wheel will cover 3520/20=176 cm which is the circumference

circumference=2 x (22/7) x R

176=2 X (22/7) X R

R=176 x 7

     22x2

=28 cm