Radius
Furmulas
Circumference
Definitions
100
If the Diameter is 6 then what is the Radius? Explain Why?
The Radius is 3 because the Radius is half the Diameter.
100
Pi r squared is the formula for what?
the area of a circle/disk.
100
What information do you need to find the circumference?
The radius or the diameter.
100
What is a diameter?
The diameter is a chord that intersects through the center of a circle.
200
Is the radius a chord? Why or why not?
No, because it does not intersect two parts of the circle
200
C/D is the formula for what?
Pi.
200
The circumference of the circle is essentially the ____ of the circle.
The perimeter.
200
What is a Radius?
A line segment that goes from the center to the edge of a circle.
300
If the circumference is 37.7m, how long is the radius?
The radius is 6m long
300
How do you get the circumference if you have the Radius?
2 Pi r.
300
If you are only given the diameter can you find the circumference? Prove it.
Yes, because the formula for circumference is diameter x pi.
300
What is a circumference?
It's the perimeter of the circle.
400
If the diameter is 8pi, what is the radius?
The radius is about 12.57
400
How do you get the sector area?
Central Angle/360 = Sector/Total
400
If the radius is 12pi, what is the circumference?
The circumference is about 236.87.
400
What is a chord?
A chord is a straight line that intersects the circle in two places.
500
if the circumference is 12 pi what is the radius?
The radius is 6.
500
How do you get the Radius if all you have is the Area?
You would find the square root of A/Pi.
500
If the radius is 7pi, what is the circumference?
The circumference is about 138.17.
500
What is Pi?
Pi is a mathematical constant and the ratio of a circle's circumference to its diameter.
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