The
inner
and
outer
radii of circular
Path
5cm
and 9cm,
find
its
area?
Answers
Answered by
0
Answer:
ANSWER
Area of the region between two
concentric circles with radius of outer circle R, and inner circle r =π(R
2
−r
2
)
Hence, the area of a flat circular ring formed by two concentric circles whose radii are 9 cm and 5 cm =π(9
2
−5
2
)=
7
22
(81−25)=176cm
2
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