Is it true that the distance travelled by a cirular wheel of diameter d cm in one revolution is `2pid` cm ? Why ?

Consider the following statements : 1. Area of a segment of a circle is less than area of its corresponding sector. 2. Distance traveled by a circular wheel of diameter 2d cm in one revolution is greater than 6d cm. Which of the above statements is/are correct ?

If pi is taken as 22//7 , the distance (in metres) covered by a wheel of diameter 35 cm, in one revolution, is (a) 2.2 (b) 1.1 (c) 9.625 (d) 96.25

The diameter of a toy wheel is 14 cm. What is the distance travelled by it in 15 revolutions ?

Find the distance covered by the wheel of a car in 500 revolutions if the diameter of the wheel is 77 cm.

The radius of a wheel is 21 cm. What is the distance (in cm) travelled by the wheel in 10 revolutions ?

The radius of a wheel is 14 cm. What is the distance (in cm) travelled by the wheel in 15 revolutions ?

A toothed wheel of diameter 50 cm is attached to a smaller wheel of diameter 30 cm. How many revolutions will the smaller wheel make when the larger one makes 15 revolutions? (a) 18 (b) 20 (c) 25 (d) 30