The picture given below shows the face of a clock. When the time is 10 : 10

CBSE Class 9 CBSE Class 9 Maths
1

The picture given below shows the face of a clock. When the time is 10 : 10, the hour hand and the minute hand form angle x and minute hand and second hand form angle z, whereas hour hand and second handForm angle y. Then, prove that x=y+z/2
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2

Angle formed by minute hand in 20 min
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Angle formed by second hand in 30 sec
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[angle formed by minute hand from 2 to 8] (1)
∴ z° = 180°
Now, y° = 360°-x°-z°
=> y°= 360°-120°-180° = 60°
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