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Byju's Answer
Standard VII
Mathematics
Circumference of a Circle
Observe the a...
Question
Observe the adjacent figure. It shows two circles with the same centre. The radius of the larger circle is
10
c
m
and the radius of the smaller circle is
4
c
m
Find the shaded area between the two circles. (take
π
=
3.14
)
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Solution
Area of shaded region =
π
(
R
2
−
r
2
)
=
3.14
(
10
2
−
4
2
)
=
3.14
×
84
=
263.76
c
m
2
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4
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