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Standard VII
Mathematics
Area of a Circle
Question
Large hand of a clock is
21
cm long. How much distance does its extremity move in
20
minutes?
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Solution
Verified by Toppr
Distance cover in
20
minutes
=
θ
360
0
×
2
π
r
Now, in
60
min
−
360
0
1
min
−
60
0
20
min
−
120
0
∴
Distance
=
120
0
360
0
×
2
×
22
7
×
21
=
44
c
m
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Similar Questions
Q1
Large hand of a clock is
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Q2
The large hand of a clock is
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Q3
The minute hand of a clock is
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Q4
The minute hand of a clock is 14 cm long. How far does the tip of the minute hand
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