Circle Terms
The line that extends from the center of the circle to the edge of the circle.
What is the radius
The diameter of this circle is 10
What is 5
The Radius of this circle is 4
What is 8
The Radius of this circle is 1
What is 2*pi or 6.28
What is the formula for calculating the Area of a circle
What is A=pi*r^2
The longest line that stretches from edge to edge in a circle. Also twice the radius.
What is Diameter
The diameter of this circle is 24
What is 12
The Radius of this circle is 35
What is 70
The Radius of this circle is 7
What is 14*pi or 43.96
The Radius of this circle is 7
What is 49*pi or 153.86
The perimeter of a circle
What is the Circumference
The diameter of this circle is 15
What is 7.5
The Radius of this circle is 22.5
What is 45
The Diameter of this circle is 15.3
What is 15.3*pi or 48.042
The radius of this circle is 3.5
What is pi*(3.5)^2 or 38.465
The total amount of space a circle takes up
What is Area
The Circumference of this circle is 2*pi. or 6.28
What is 1
The Circumference of this circle is 10*pi or 31.4
What is 10
The Diameter of this circle is 1/4
What is pi/4 or 0.785
The diameter of this circle is 8
What is 16*pi or 50.24
The ratio C/D or 3.14 or approximately 22/7
What is Pi
The circumference of this circle is 8*pi or 25.12
What is 4
The Circumference of this circle is 13.2*pi or 41.448
What is 13.2
Name both formulas for calculating the Circumference
What is C=2*pi*r and C=pi*d
The diameter of this circle is 11
What is pi*(5.5)^2 or 94.985