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The minute hand of a watch is 1.5 cm long. How far does its tip move in 40 minutes? (Use π = 3.14).
If the arcs of the same lengths in two circles subtend angles 65°and 110° at the centre, find the ratio of their radii.
A wheel makes 360 revolutions in one minute. Through how many radians does it turn in one second?
In a circle of diameter 40 cm, the length of a chord is 20 cm. Find the length of minor arc of the chord.
If in two circles, arcs of the same length subtend angles 60° and 75° at the centre, find the ratio of their radii.
Find the angle in radian through which a pendulum swings if its length is 75 cm and the tip describes an arc of length
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