Question

If the wheel of a car makes four complete rotation and half a turn, then the number of right angles through which it turns is:

• A. $16$
• B. $18$
• C. $20$
• D. $8$

Answer 1

The correct option is B $18$

Each complete rotation of the wheel $=360°$

There are $4$ right angles in $360°$

$4$ complete rotations will have $4\times 4=16$ right angles

Half a turn $=180°$

There are $2$ right angles in $180°$

Therefore, total number of right angles through which the car wheel turns $=16+2=18$ right angles