The radii of two concentric circles are 19cm and 16cm ,find the area of the ring enclosed between them
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Answered by
1
here's ur answer!!!
diameter=19cm
radius=9.5cm
diameter=16cm
radius=8cm
area of circle(radius=9.5cm)=πr²
=22/7×9.5×9.5
=1985.5/7
area of circle (radius=8cm)=πr²
=22/7×8×8
=1408/7
area of the ring=1985.5-1408/7
=577.5/7
=82.5cm²
hope this helps u....
diameter=19cm
radius=9.5cm
diameter=16cm
radius=8cm
area of circle(radius=9.5cm)=πr²
=22/7×9.5×9.5
=1985.5/7
area of circle (radius=8cm)=πr²
=22/7×8×8
=1408/7
area of the ring=1985.5-1408/7
=577.5/7
=82.5cm²
hope this helps u....
Answered by
1
hope this will help you.
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