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Why is it pie r squared is the exactly formula for circumference?
Wiki User
∙ 12y ago
It isn't. That is the formula for the AREA of a circle!
Wiki User
∙ 12y ago
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What is the circumference of a circle when its area is 121 pie inches cubed?
the area can not be cubed. the area is always squared. volume is cubed. the formula for area is pie multiplied by radius squared. your formula for your circle is... A = 121pi in2 the radius in your circle is 11 inches the formula for circumference is two times pi times the radius C = 2 * (3.14159) * 11 your answer is 69.11498in
What is the surface area of half a sphere?
its 2 pie r squared BUT you have to add back the base (a circle) which is pie r2 The original formula is 4 pie r squared Your new formula is (2 pie r squared + pie r squared)
How do you find the circumference with the pie formula?
circumference = pi multiplied by the diameter
What is the formula for the area A of a circle?
Area = pi*radius2A = Pi*R-squaredPi * R^2
What is the correct formula for calculating the circumference of a circle?
[2 x pie x radius] or [pie x diameter]
What is the circumference of a circle with an area of 121 pie yards squared?
The circumference of a circle with an area of 121 pie yards squared (380.13 yards2) is: 69.1 yards
How do you a just the circumference of a circle?
pie r squared
What is the circumference of a circle when its area is 121 pie inches cubed?
the area can not be cubed. the area is always squared. volume is cubed. the formula for area is pie multiplied by radius squared. your formula for your circle is... A = 121pi in2 the radius in your circle is 11 inches the formula for circumference is two times pi times the radius C = 2 * (3.14159) * 11 your answer is 69.11498in
What is the surface area of half a sphere?
its 2 pie r squared BUT you have to add back the base (a circle) which is pie r2 The original formula is 4 pie r squared Your new formula is (2 pie r squared + pie r squared)
How do you find the circumference with the pie formula?
circumference = pi multiplied by the diameter
What is the area of a circle if its circumference 12 pie?
The area of a circle if its circumference 12pi is: 113.1 units squared.
Is the circumference 3 times the radius?
No, the formula for a circumference of a circle is 2(pie)r For example, if r is 6, the the circumference is 12(pie)
When do you need to use circumference?
The formula is Pie*Diameter
What are some common math formulas?
Well pythagorus theoreum is a squared plus b squared equals c squared and circumference equals pie x diameter and area equals pie x radius squared
What is the formula for the area A of a circle?
Area = pi*radius2A = Pi*R-squaredPi * R^2
How do you find the circumference of a circle if you know the radiuss?
This is an easy formula to remember!pi times the radius squared. it looks like this πr2π=3.14 (but it goes on) and multiply that by the radius squared! My 7th grade math teacher thought it was funny to say, but pie aren't square, pie are round! (Cheesy, but it stuck!)
If a circle has a circumference of 10 pie what is the circle's area?
This circle's area would be 78.54 units squared.
