A circular flower bed is 20 m in diameter and has a circular sidewalk around it that is 2 m wide. Find the area of the sidewalk in square meters. Use 3.14 for π.
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Answered by
10
circle::
diameter = 20m, sidewalk =2m
area of the flower bed( incl sidewalk) = pie r square . 3.14 x 10 x 10
= 314.00m SQ
area of flower bed (excl sidewalk) = pie r square
=3.14 x 8 x 8
= 200.96 m sq
side walk = incl area - excl area= 314 - 200.96 = 113.4m sq
diameter = 20m, sidewalk =2m
area of the flower bed( incl sidewalk) = pie r square . 3.14 x 10 x 10
= 314.00m SQ
area of flower bed (excl sidewalk) = pie r square
=3.14 x 8 x 8
= 200.96 m sq
side walk = incl area - excl area= 314 - 200.96 = 113.4m sq
rileyyy:
it says thats wrong
Answered by
30
hello frnd!
here's ur answer...
given the diameter of the circular flower bed is 20m.
therefore radius of the flower bed=20/2
=10m
area of the flower bed=πr²
=3.14×10×10
=314m²
if the path is all around the flower bed and it's width is 2m, then the radius of the flower bed along with the path will be=10+2
=12m
therefore it's area=πr²
=3.14×12×12
=452.16m²
hence the area of the path=452.16-314
=138.16m²
hope this helps..!
here's ur answer...
given the diameter of the circular flower bed is 20m.
therefore radius of the flower bed=20/2
=10m
area of the flower bed=πr²
=3.14×10×10
=314m²
if the path is all around the flower bed and it's width is 2m, then the radius of the flower bed along with the path will be=10+2
=12m
therefore it's area=πr²
=3.14×12×12
=452.16m²
hence the area of the path=452.16-314
=138.16m²
hope this helps..!
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