Area on the coordinate plane
Composite Figures
Area of Rect./Parallel.
Area of Triangle/Trap.
Vocab
100
What are my kids' names?
Raylan and Eddie
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
What is the definition of a trapezoid?
a quadrilateral with one pair of parallel sides.
200
Daily Double!
Find the area of the figure on the grid...
128 square units.
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 is always straight up and down.
True
300
What is the area of the triangle?
15 square units.
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 base of a triangle that has an area of 67.5 square inches and a height of 9 inches?
base = 15 inches
300
What number do we use for pi?
3.14
400
Find the area of this figure
30 units squared
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
1. E(1,7), F(3,7), G(3,4), H(1,4)
Use these coordinates to find the Perimeter of the rectangle. (Make a grid if necessary)
10 units
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 to remember about our units for area?
they are square units