Vocabulary
Name a shape that has no edges.
Circle
What is the circumference of a circle if:
the radius = 7 yds?
43.96 yds
What is the circumference of a circle if:
the Diameter = 4 in
12.56 in
What is the area of a circle if:
the Radius = 6 in
113.04 in2
What makes something proportional or not?
Starts at (0,0) and has a pattern (straight line on a graph)
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 yds
What is the circumference of a circle if:
the Diameter = 10 in
31.40 in
What is the area of a circle if:
the Radius = 3 ft
28.26 ft2
What is the letter for the constant of proportionality?
What do you call half of the Diameter?
Radius
What is the circumference of a circle if:
the radius = 8.4 yds?
52.75 yds
What is the area of a circle if:
the Radius = 14 in
615.44 in2
What is the area of a circle if:
the Diameter = 12 feet?
113.04 ft2
K = y/x
The outside measurement of a circle.
Circumference
What is the circumference of a circle if:
the radius = 7.4 yds?
46.47 yds
What is the Area of a circle if:
the Diameter = 14 in
153.86 in2
What is the area of a circle if:
the diameter = 8 in
50.24 in2
Solve for the K in (3, 9). Simplify if necessary.
K = 9/3 = 3
The measurement of the inside of a circle
Area
The circular fountain in front of the courthouse has a radius of 9.4 feet. What is the circumference of the fountain? Round to the nearest tenth.
What is 59 ft?
What is the circumference AND area of a circle if:
the Diameter = 10 in.
Circumference: 31.4 in
Area: 78.5 in2
What is the area of a circle if:
the diameter = 9 yd
Round to the nearest hundredth.
63.59 yd2
Solve for the K in (4, 2). Simplify if necessary.