Vocabulary
Name a shape that has no edges.
Circle
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
What is the formula to find the circumference of a circle?
C=
2pir or pid
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
What do you call the half of the diameter?
Radius
What is the circumference of a circle if:
the radius = 8.4 yds?
52.75 or 16.8π yds
Find the area of a circle when the radius is 11 in.
69.12 inches
What is the area of a circle if:
the Diameter = 12 feet?
36π or 113.04 ft2
DAILY DOUBLE: What is the radius of a circle whose area is 1256?
20
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?
The diameter of a circle is 16. What is the radius?
16 / 2 = 8
Radius = 8
What is the area of a circle if:
the diameter = 9 yd
20.25π or 63.56 yd2
What is the radius of a circle whose area is 372?
10.88