Question

a circular flower bed is surrounded by a path 4cm wide The diameter of the flower bed is 60m what is the area of the path (17 =3.14)
Sameer snap pe​

Answer 1

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Answer 2

Diameter of the circular flower bed=60m

∴ Radius of circular flower bed(r)=

2/60

=30m

∴ Radius of circular flower bed with 4 m wide path(R)=30+4=34m

According to the question,

Area of path=Area of bigger circle−Area of smaller circle

=πR

2

−πr

2

=π(R

2

−r

2

)

=π[(37)

2

−(33)

2

]

=3.14[(37+33)(37−33)] [∵a

2

−b

2

=(a+b)(a−b)]

=3.14×70×4

=879.20m

2

.