reshmibk2020 reshmibk2020

13-12-2020
Mathematics

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find the length of the radius of the circles whose circumference is 550 cm

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umairkazi924 umairkazi924

13-12-2020

Circumference = Perimeter

Perimeter of Circle

= 550cm

Also,

Perimeter of Circle

= 2πr

Now,

2πr = 550

πr = 550/2

πr = 275

r = 275/π

r = 275/ 22/7

r = 275 × 7/22

r = 87.5cm

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