A bicycle wheel makes four and half turns, then the number of right angles through which it turns is ________.

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Solution

The correct option is B 18
1 turn = 4 right angles
$∴$ 4 turns = 4 $\times$ 4 = 16 right angles and $\frac{1}{2}$ turn = 2 right angles.
So, the number of right angles in four and half turns = 16 + 2 = 18

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A bicycle wheel makes four and half turns, then the number of right angles through which it turns is ________.

The correct option is B 181 turn = 4 right angles∴ 4 turns = 4 × 4 = 16 right angles and 12 turn = 2 right angles.So, the number of right angles in four and half turns = 16 + 2 = 18

The correct option is B 18
1 turn = 4 right angles
$∴$ 4 turns = 4 $\times$ 4 = 16 right angles and $\frac{1}{2}$ turn = 2 right angles.
So, the number of right angles in four and half turns = 16 + 2 = 18