Vocabulary
The measurement of the total space inside of a circle
Area
What is the circumference of a circle if:
the diameter= 5m?
15.7m
What is the area of a circle if:
the Radius = 6cm
113.04 cm2
Name the line in a circle that cuts it in half.
Diameter
What is the circumference of a circle if:
the diameter= 8.4km?
25.43km
What is the area of a circle if:
the Radius = 3m
28.26 m2
What do you call half of the Diameter?
Radius
What is the circumference of a circle if:
the radius = 7.4cm
46.47cm
What is the area of a circle if:
the Diameter = 12 feet?
113.04 ft2
The outside measurement of a circle.
Circumference
What is the circumference of a circle if:
the radius = 700m?
4396m
What is the area of a circle if:
the diameter = 8km
50.24 km2
What is the area of the shaded region? see board for drawing
shaded area has an angle 60 degrees
radius = 8m
36.27m2
This is the point in the center of a circle
focus
What is the area of the shaded region? see board for drawing
angle in shaded region = 270degrees
diameter = 12m
84.78m2
What is the total perimeter distance of the shaded region. see board for drawing.
r = 15cm
angle = 120 degrees
61.4cm