9) Find the measure of the angle between
hour-hand and the minute hand of a clock
at twenty minutes past two.
A) 50°
B) 60°
C) 54°
D) 65°
Answer=50°
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Answer:
If the minute-hand is at 2 and hour-hand is at 4, angle between them is (2 x 30°) = 60°. But at 20 past two, i.e., at 2 : 20, the hour-hand has moved 20 minutes towards 12. ∴ the angle between the two hands of the clock at twenty past two = 60° – 10° = 50°.
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