How to find a circumference in Pi R Square
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When ever you want to do so, take pi as 22/7 unless and untill in the question the value of pi is given in brackets.
Then take r as radius given in question already and find out its square.
To find out the square multiply r with the same number, (r X r). Eg r is 5, so r square = 5X5=25.
And the place the values of pi r square.
For eg, r =10, find the circumference...
Solution,
22/7 X 10square = circumference
22/7 X 100 = circumference
314.29(approx) =circumference
Plz if you like Mark it as the Brainliest...
Then take r as radius given in question already and find out its square.
To find out the square multiply r with the same number, (r X r). Eg r is 5, so r square = 5X5=25.
And the place the values of pi r square.
For eg, r =10, find the circumference...
Solution,
22/7 X 10square = circumference
22/7 X 100 = circumference
314.29(approx) =circumference
Plz if you like Mark it as the Brainliest...
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