Diameter=7cm(takeπ=3.14
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Answer:
Step-by-step explanation:
The area of a circle is given by formula:
π
r
2
Where,
π
has a constant value of
≈
3.14
and
r
denotes the radius.
The radius of the circle is half the diameter
=
d
2
=
7
2
=
3.5
c
m
The area
=
π
r
2
≈
3.14
×
(
3.5
)
2
=
3.14
×
(
12.25
)
=
38.465
c
m
2
≈
38
c
m
2
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