Question

a bicycle wheel makes 4 half turns . The number of right angles through which it will turn ?

Answer 1

Answer:

So, the number of right angles in four and half turns = 16 + 2 = 18.

Answer 2

1 turn $&#x3d$ 4 right angles

∴ 4 turns $&#x3d$ 4 × 4 $&#x3d$16 right angles and $\frac{1}{2}$

Turn $&#x3d$ 2 right angles.

So, the number of right angles in four and half turns $&#x3d$ 16 $&#x2b$ 2 $&#x3d$ 18.