Understanding Elementary Shapes
What fraction of a clock wise revolution does the hour hand of a clock turn through when it goes from
(a) 3 to 9 (b) 4 to 7 (c) 7 to 10
(d) 12 to 9 (e) 1 to 10 (f) 6 to 3
We may observe that in 1 complete clockwise revolution, the hour hand will
rotate by 360º.
(a) When the hour hand goes from 3 to 9 clockwise, it will rotate by 2 right angles or 180º.
(b) When the hour hand goes fr…
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