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Maths CBSE Live product
Class 10
Areas Related to Circles
Area of sector
6.
AR - Area of the sector
Question:
1
m.
Assertion
\((A)\): The length of the minute hand of a clock is
7
\(cm\). Then the area swept by the minute hand in
5
minutes is
17.1
\(cm^2\)
Reason
\((R)\): The length of an arc of a sector of a angle '\(θ\)' and radius '\(r\)' is given by \(=\)
l
=
θ
360
°
2
π
r
.
Both
A
and
R
are true, but
R
is not the correct explanation of
A
.
Both
A
and
R
are true, and
R
is the correct explanation of
A
.
A
is false, but
R
is true.
A
is true, but
R
is false.
Both
A
and
R
are false.
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