Question

A wheel has a radius of 28 cm. If it does 50 revolutions, what distance will it travel?

Answer 1

Radius=28cm

Revolution=50

Base area=

$\pi r {}^{2}$

$22 \div 7 \times 28 \times 28$

$22 \times 4 \times 28$

=2464

Distance =2464×50

=123200

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Answer 2

Answer :-

◾As provided :-

▪️Radius = 28 cm

▪️Revolution = 50

⏩In order to find out the distance covered in 50 revolution , we should first find out the distance covered in one Revolution.

⏩As we know that in one revolution the wheel will cover the distance equal to it's circumference.

◾The circumference of wheel

= 2πr

$= 2 \times \dfrac{22}{7} \times 28$

$= 2\times 22 \times 4$

= 176 cm

◾Now total distance covered in 50 revolution :-

= 50 × 176

= 8800 cm

or

= 88 m