Find the number of right angles turned through by the hour hand of a clock when it goes from
(a) 3 to 6 (b) 2 to 8 (c) 5 to 11 (d) 10 to 1 (e) 12 to 9 (f) 12 to 6
Answer (a)
Hour hand covers 1 right angle to move from 3 to 6.
Answer (b)
Hour hand covers 2 right angles to move from 2 to 8.
Answer (c)
Hour hand covers 2 right angles to move from 5 to 11.
Answer (d)
Hour hand covers 1 right angle to move from 10 to 1.
Answer (e)
Hour hand covers 3 right angles to move from 12 to 9.
Answer (f)
Hour hand covers 2 right angles to move from 12 to 6.
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