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Earn +20 ptsQ: How do you work out pi r squared?
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What is formula for pi r squared?
The area of a circle = pi*r2
How do you get area of a circle?
A=pi(r)squared
What is the relationship between the area of a circle and its radius squared?
The area of a circle is defined by the equation A = πr^2 where π = pi (3.14...) A = Area r^2 = radius squared So, the radius of a circle squared multiplied by pi equals the area.
Do you multiply the radius or the diameter of pi?
The raduis.It's pi, r squared. the r stands for radius!
If the area of a circle is 25 square units what is the radius of the circle?
area equals pi r squared therefor r squared equals area over pi. Now find square root of r squared and you have "R" (radius) = 2.821
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