A disc has a radius of 10.5 cm . Find the circumference of the disc
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Step-by-step explanation:
Hi, my friend,
Given that:
Radius = 10.5 cm
As we know that circumference of a circle formula = 2πr ----------(1)
Hence substitute r value in equation (1)
=> C = 2πr
=> C = 2(π)(10.5)
=> C = (π)(2)(10.5)
=> C = (π)(21)
[Let's assume π to be 22/7 for simple calculation]
=> C ~ (22/7)(21)
=> C ~ 66 cm
Hence the circumference of the disc is approximately 66 cm.
Harith
Maths Aryabhatta
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Answer:
Step-by-step explanation:
Circumference = 2× (22/7)×10.5
= 154.4 cm
Hope it helps you
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