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Examples 1 to 4 of Clocks
(1) Find the angle between the hour hand and the minute hand of a clock when the time is 3 : 30.
Soln. Hour hand covers a distance of 3 hrs. and 30 minutes = 210 minutes and Minute hand covers a distance of 30 minutes.
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General Concepts
☼ GENERAL CONCEPTS :
↦ It is 11 : 00 o’clock. In how many minutes both the hands will coincide ?
Soln. Our wrong answer is 55 minutes. Because we always give answer by fixing ( no movem…
Circle and its tangent
☼ Circle and its tangent :
↦ Three collinear points cannot lie on a circle.
↦ If a line in the plane of a circle has common point with the circle, then there are two alternatives :
- The line intersects the circ…