Radius
The diameter of the circle is 18
What is 9?
The radius of the circle is 14
What is 28?
The formula to find circumference
What is:
C= Pi x Diameter
or
C= 2 x Pi x Radius
The radius of a circle is 8
What is 200.96
The diameter of the circle is 16
What is 8?
The radius of the circle is 19
What is 38?
The diameter of the circle is 10
What is 31.4?
The formula to find the area of a circle
What is:
A= Pi x R2?
The diameter of the circle is 124
What is 62?
The radius is 45.2, what is the diameter?
What is 90.4?
The diameter of the circle is 62.5
What is 196.25?
The radius of the circle is 9
What is 254.34?
Find the radius if the circumference of the circle is 18.84 inches.
(Hint: Work backwards)
What is 3?
The circumference of the circle is 28.26
(Hint: work backwards)
What is 9?
The radius of the circle is 18
What is 113.04?
The diameter of the circle is 144
What is 16,277.76?
Find the radius if the circumference of the circle is 25.12
(Hint: Work backwards)
What is 4?
The circumference of the circle is 1,133.54
(Hint: Work backwards)
What is 361?
The radius of the circle is 50.25
What is 315.57?
The diameter of the circle is 280
What is 61,544?