Question

Find the area of the space enclosed by two concentric circle of radius 25 cm and 17 cm

Answer 1

Hey



Given that :-


Radius ( R ) = 25 cm


Radius ( r ) = 17 cm


Now ,



Area of larger circle :-


= pie * ( R ) ²


= pie ( 25 ) ²



Area of smaller circle :-

= pie * ( r ) ²


= pie ( 17 ) ²



Now ,


area enclosed by these circles :-


Area of larger circle - area of smaller circle


= pie * ( 25 ) ² - pie * ( 17 ) ²



= pie * 625 - pie * 289


= pie * ( 625 - 289 )


= pie * 336



= 22 / 7 * 336


= 22 * 48


= 1056 cm²



thanks :)

Answer 2

hiii!!!

here's ur answer...

ATQ,

we have to find the area between the two circles.

radius are given 25cm and 17cm.

area of circle (radius=25cm) = πr²

= 22/7×25×25

= 13750/7cm²

area of circle (radius=17cm) = πr²

= 22/7×17×17

= 6358/7cm²

therefore area between them = 13750-6358/7

= 7392/7

= 1056cm²

hope this helps u..!!

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