Vocabulary
Radius or Diameter?
Circumference
Area
Semi Circle
Composite Figures
100
A circle is the set of all points in a plane that are the same distance away from a point called the...
center
100
Given: Radius = 7 mm
The diameter is...
14 mm
100
Given: 
The circumference is...
31.4 mm
100
What is the area?
78.5 cm2
100
Given: Radius = 5 mm
The area of the semicircle is...
39.25 mm2
100
What is the perimeter of this composite figure? 
Triangle Edges (8 + 6) + Circle Curves (8pi) + Base of Rectangle (10)
Total 49.12 ft
200
The distance from the center to any point on the circle is called...
the radius
200
Given: Diameter = 50 in
The radius is...
25 in
200
Given: Diameter = 12 m
The circumference is...
37.68 m
200
Given: Diameter = 16 cm
The area is...
200.96 cm2
200
Given: Diameter = 14 m
The area of the semicircle is...
76.93 m2
200
What is the area of this composite figure?
Triangle (8 x 6 x 0.5)
Rectangle (10 x 8)
Circle (3.14 x (4)2)
Total Area = 154.24 ft2
300
The distance across the circle through the center is called...
the diameter
300
Given: Diameter = 150 ft
The radius is...
75 ft
300
Given: Radius = 2.1 yd
The circumference is...
13.188 yd
300
What is the area?
176.625 cm2
300
Given: Radius = 20 in
The circumference of the semicircle is...
102.8 in
Curve = 62.8
Diameter = 40
300
What is the perimeter of the figure?
26.56 inches
400
The distance around a circle is... and its formula is...
the circumference
C = pi(d)
C = 2pir
400
Given: Radius = x
The diameter is...
2x
400
Given: 
The circumference is...
125.6 cm
400
Given: Diameter = 5 mi
The area is...
19.625 mi2
400
Given: Diameter = 5 mm
The circumference of the semicircle is...
12.85 mm
400
What is the area of the figure?
Semicircle Area = 25.12
Rectangle Area = 24
Total Area = 49.12 in2
500
The amount of space inside a shape is the .... and the formula is ...
Area
A = pi r2
500
Given: Diameter = xy
The radius is
(xy)/2
500
What is the radius if the circumference is 26.376 inches?
4.2 inches
500
What is the diameter of a circle with an area of 530.66 ft2?
26 ft
500
Given: Diameter = 16 mm
The circumference of the semicircle is...
41.12 mm
500
What is the difference in the area of the two shapes?
Semicircle Area = 25.12
Rectangle Area = 24
Difference = 1.12 in2