The length of the minute hand on a clock is 14 cm find the area swept by the minute hand in 5 minutes
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Answered by
18
Total angle at the centre = 360
Angle for 1 min = 360/60 = 6.
Radius = 14 cm
Angle for 5 minutes = 30.
Area swept = pie * 14^2 * 30/360
= 22/7 * 14 *14 * 1 /12
= 154/3 = 51.33 cm^2
Angle for 1 min = 360/60 = 6.
Radius = 14 cm
Angle for 5 minutes = 30.
Area swept = pie * 14^2 * 30/360
= 22/7 * 14 *14 * 1 /12
= 154/3 = 51.33 cm^2
Answered by
10
The Length of the hand of clock is 14cm
The Total angle clock is =360°
Angle of one minute= 360/6 = 6
Angle of 5 minute = 6×5 =30
Angle of Swept = pie × 14^2 × 30/360
= 22/7 × 14 ×14 ×1/12
= 154/3
= 51.33cm^2
The Total angle clock is =360°
Angle of one minute= 360/6 = 6
Angle of 5 minute = 6×5 =30
Angle of Swept = pie × 14^2 × 30/360
= 22/7 × 14 ×14 ×1/12
= 154/3
= 51.33cm^2
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