Measure the radius of the wheels of a bicycle or a bullock-cart. You can use a thread or a measuring tape.

One Line Answer

The radius of the wheels of a bicycle is 12 inches. The radius of the wheel of a bullock cart is 20 inches.

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Carts and Wheels

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Chapter 8 Carts and Wheels
Exercises | Q 17 | Page 86

Have you ever gone to a bangle shop?

Is any of these a good drawing of a circle?

Can you draw a circle on the floor with a chalk? Try.

Look at the circles drawn by your friends. Who has drawn the best circle?

Now see what your friends have drawn. Discuss the length of the radius they measured. Is it the same as yours?

Draw the radius of these circles. Guess which circle has the longer radius.

Measure the radius of both circles using a ruler.
Write the length of their radius.

Have you seen a tractor or a road roller?

Now you can make your own designs like Daljeet had made. How many did you make?

Why did Naina get such a drawing? Discuss.