Vocabulary
A straight line from the center to the circumference of a circle or sphere
Radius
What is the circumference of a circle if:
the radius = 7 yds?
43.96 or 14π yds
What is the formula to find the area of a circle?
A=
pir^2
What is the area of a circle if:
the Radius = 6 in
36π or 113.04 in2
What is the diameter of a circle whose circumference is 314?
100
Name the line in a circle that cuts it in half.
Diameter
What is the circumference of a circle if:
the radius = 9 yds?
56.52 or 18π yds
A tire has a radius of 16. What is the circumference?
100.48
What is the area of a circle if:
the Radius = 3 ft
9π or 28.26 ft2
What is the diameter of a circle whose circumference is 690?
219.63
A geometric figure composed of points that are equal distance from a given point.
Circle
What is the circumference of a circle if:
the radius = 8.4 yds?
52.75 or 16.8π yds
Find the circumference of a circle when the radius is 11 in.
69 inches
What is the area of a circle if:
the Diameter = 12 feet?
36π or 113.04 ft2
A cylindrical tank has radius 1.5 m. What is the circumference of its base ?
9.42
The outside measurement of a circle. Or the distance around the outside of the circle
Circumference
What is the circumference of a circle if:
the radius = 7.4 yds?
46.47 or 14.8π yds
What is the Area of a circle if:
the Diameter = 14 in
153.86 or 49π in2
What is the area of a circle if:
the diameter = 8 in
16π or 50.24 in2
What is the radius of a circle whose circumference is 901?
143.40
The measurement of the inside of a circle. Or how much the circle covers
Area
The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain?
What is 59 ft?
A rose garden is circular. The diameter of the garden is 18 feet. Find the total area of the garden using 3.14 for pi.
254.34
A dog is leashed to a point in the center of a large yard, so the area the dog is able to explore is circular. The leash is 20 feet long. What is the area of the region the dog can explore?
1256
What is the radius of a circle whose circumference is 372?
59.21