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Rhombus
Trapezoid
Parallelogram
Vocabulary
Formula
100
d  = 35m: d = 12m 

  1              2

A =   

210
100
Find the area of the trapezoid if the bases are 15 and 9. Its height is 14.
168 cm^2
100
Find the area of the parallelogram when its base is 13 in. and its height is 9 in.
117 in^2
100
A quadrilateral in which opposite sides are parallel and congruent.

parallelogram

100
How can you find the area of a parallelogram?
A = bh
200
d = 10; d = 18

  1          2

A = 

90
200
The bases of a trapezoid are 24 cm and 32 cm. Its height is 16 cm. What is the area of the trapezoid?
448 cm^2
200
A parking space shaped like a parallelogram has a base of 17 feet and a height of 9 feet. What is its area?
153 ft.^2
200

A quadrilateral in which 2 sides are parallel.

trapezoid
200

How can you find the area of a rhombus?

A = 1/2 d d

              1  2

300
d = 9.5 in ; d = 14 in

  1               2

A =

66.5
300
The bases of a trapezoid are 11 meters and 14 meters. Its height is 10 meters. What is the area of the trapezoid?  
125 m ^2
300
What is the area of a parallelogram that has a base of 4 1/2 in. and a height of 2 1/4 in. ? 
10 1/8 in^2
300

A quadrilateral in which all sides are congruent and opposite sides are parallel.

rhombus
300

How can you find the area of a trapezoid ?

A = 1/2h(b + b)

                1    2

400
d = 8 1/4ft; d = 40ft

  1                 2

A =

165
400
The seat of a bench is in the shape of a trapezoid with bases of 6 feet and 5 feet and a height of 1.5 feet. What is the area of the seat?
8.25 ft^2
400
A window in the shape of a parallelogram has a base of 36 inches and a height of 46 inches. What is the area of the window?
1,620 in^2
400
inverse operation
switching to the opposite sign
400

How can you find the area of a rectangle?

A = bh
500
The diagonals of a rhombus are 21 m and 32 m and 32 m. What is the area of the rhombus?
336 m^2
500
The height of a trapezoid is 8 in. and its area is 96 in. 

One base of the trapezoid is 6 inches longer than the other base. What are the lengths of the bases? Explain how you found your answer?

9 in. and 15 in.; use the formula. Substitute 96 for A and 8 for h and simplify the equation to find 24. 24=(b + b). Use guess and check to find two numbers that add to 24 with one number 6 more than the other and get 9 and 15.

   1    2

500
What is the area that has a base of 12 3/4 in. and a height of 2 1/2 in.? 
37 1/8 in
500
The number of square units needed to cover a given surface.
Area
500

How can you find the area of a triangle?

1/2 bh