Circ./Area Circle
Composite Figures
Area of Rect./Parallel.
Area of Triangle/Trap.
Vocab
100
What is the formula for circumference of a circle?
A=π d
100
When there is gray space that means you add or subtract?
subtract
100
What is the formula for area of a rectangle/parallelogram?
A= b x h
100
What is the formula for area of a triangle?
1/2 bxh or bxh divided by 2
100
Radius is half way across or all the way across?
half
200
What is the formula for area of a circle?
A=π r2
200
Find the area of the shaded space.
30 - 4.5 = 25.5 sq. units
200
Find the area of the rectangle.
40 cm2
200
What are the steps to find the area of a trapezoid? (3)
1. Add bases
2. Divided answer by 2
3. Multiply answer by height
200
True or False: The height always straight up and down.
True
300
Find the circumference when the diameter of 8 cm.
25.12 cm
300
Find the area of the shaded space.
120 - 14 = 106 m2
300
Find the area of the rectangle.
345 cm2
300
What is the area of this triangle?
32 cm2
300
What number do we use for pi?
3.14
400
Find the area of a circle with a radius of 6 cm.
113.04 cm2
400
Find the area.
280 + 153.86 = 433.86 cm2
400
Find the area of the parallelogram.
50 in2
400
What is the area of this triangle?
60 sq. units
400
r2 means _________.
A. r times 2
B. r times r
r times r
500
What is the difference between area and circumference?
Answers vary.
500
Add or subtract?
A. 
B. 
C. 
D.
E.
A. Add
B. Add
C. Subtract
D. Add
E. Subtract
500
Find the area of the parallelogram.
75 cm2
500
What is the area of the trapezoid?
28 sq. units
500
What is important about our units for area?
they are square units