Name the point in the middle of a circle
What is the circumference of a circle if:
the diameter = 14m?
43.96m
What is the circumference of a circle if:
the radius = 2 in (round to nearest tenth
12.6 in
Describe what the area of a circle is.
Area of a circle is the region occupied by the circle in a two-dimensional plane
What is the formula to calculate the diameter of a circle if you are given the radius?
D = 2 × r
Name the line that cuts a circle in half
Diameter
What is the circumference of a circle if:
the diameter = 18cm?
56.52cm
What is the circumference of a circle if:
the radius = 12 in (round to nearest tenth)
75.4 in
Find the area of a circle with a radius of 7in
153.86 in2
What is the formula to calculate the area of a circle?
What do you call half of the diameter?
Radius
What is the circumference of a circle if:
the diameter = 16.8mm? (round to nearest tenth)
52.8mm
What is the circumference of a circle if:
the radius = 7 in (round to nearest tenth)
44 in
Find the area of a circle with a diameter of 4m.
12.56m2
What is the formula to calculate the circumference of a circle?
C= 2πr
The outside measurement of a circle (Hint: similar to perimeter)
Circumference
What is the circumference of a circle if:
the diameter = 14.8ft? (round to nearest tenth)
46.5ft
What is the circumference of a circle if:
the radius = 8.4 in (round to nearest tenth)
52.8 in
Find the area of a circle with a circumference of 50.24cm
200.96 cm2
What is the formula to calculate the radius of a circle if you are given the diamter?
r = d/2
The measurement of the inside of a circle
Area
What is the circumference of a circle if:
the diameter = 11.8m? (round to nearest hundredth)
37.05m
What is the circumference of a circle if:
the radius = 11.7 in (round to nearest tenth)
73.5in
Find the area of a circle with a circumference of 31.4cm
78.5cm2
Square all 4 of these numbers:
42
102
492
982
16
100
2401
9604