Area of Rectangles/Squares
Area of Triangles
Area of Parallelograms
Area of Trapezoids
Challenge
100
What is the formula for finding the area of a rectangle/square?
A= lw
100
What is the formula for finding the area of a triangle?
A= 1/2bh or bh/2
100
What is the formula for finding the area of a parallelogram?
A = bh
100
What is the formula for finding the area of a trapezoid?
A= 1/2h(b1 + b2) or (b1 + b2)h/2
100
A parallelogram has an area of 310 m2 and a height that is 62 meters long. What is the length of the base?
5 meters
200
What is the area of a square with a side of 4 cm?
A = lw
A = 4(4)
A= 16 cm2
200
What is the area of a triangle with a base of 8 inches and a height of 10 inches?
A = 1/2bh
A = 1/2(8)(10)
A= 40 in2
200
What is the area of a parallelogram with a base of 3 meters and a height of 12 meters?
A = bh
A = (3)(12)
A= 36 m2
200
What is the area of the trapezoid?
A= 1/2h(b1 + b2)
A = 1/2(6)(15 + 7)
A = 1/2(6)(22)
A = 66 ft2
200
The area of a square is 81 cm2. Find the side length.
9 cm
300
What is the area of the rectangle?
A = lw
A = 22(9)
A= 176 cm2
300
What is the area of a triangle with a base of 1 cm and a height of 1 cm?
A = 1/2bh
A = 1/2(1)(1)
A= 0.5 cm2 or 1/2 cm2
300
What is the area of the parallelogram?
A = bh
A = (26)(18)
A= 468 in2
300
Find the area of a trapezoid. 
A= 1/2h(b1 + b2)
A = 1/2(11)(18 + 14)
A = 1/2(11)(32)
A = 176 cm2
300
Calculate the area of the complex shape.
A = 1/2bh A = lw
A = 1/2(9)(4) A = 9(6)
A = 18 units2 A = 54 units2
18 + 54
A = 72 units2
400
The area of a rectangle is 26 cm2. The width is 2 cm, so what is the length?
13 cm
400
What is the base of a triangle with an area of 54 cm2 and a height of 9 cm?
12 cm
54 cm2 / 9 cm = 6
6x2 = 12 cm
400
Find the area of a parallelogram.
A = bh
A = (14)(23)
A= 322 ft2
400
What is the area of a trapezoid?
A= 1/2h(b1 + b2)
A = 1/2(6)(12 + 9)
A = 1/2(6)(21)
A = 63 m2
400
What is the area of the complex shape?
A= 1/2h(b1 + b2) A = 1/2h(b1 + b2)
A = 1/2(5)(5 + 10) A = 1/2(8)(14 + 10)
A = 1/2(5)(15) A = 1/2(8)(24)
A = 37.5 units2 A = 96 units2
37.5 + 96
A = 133.5 units 2
500
Find the area of the shaded part.
A = lw A = lw A = lw
A = 17(8) A = 5(4) A = 4(1.5)
A= 136 cm2 A = 20 cm2 A = 6 cm2
20 + 6 = 26 136 - 26 = 110
A= 110 cm2
500
Triangle PQR is a section of a ball field. Find the area.
A = 1/2bh
A = 1/2(26)(12)
A= 156 ft2
500
The area of parallelogram EFGH is 207 square inches. It's height is 9 inches. Find the base GH.
23 inches
207/9 = 23 in
500
What is the area of the trapezoid?
A= 1/2h(b1 + b2)
A = 1/2(39)(13 + 25)
A = 1/2(39)(38)
A = 741 ft2
500
The area of the composite figure. 
A = 1/2bh A = 1/2bh A = lw
A = 1/2(7)(15) A = 1/2(15)(18) A = 15(15)
A = 52.5 in2 A = 135 in2 A = 225 in2
52.5 + 135 +225
A = 412.5 in2
A = 1/2bh A = 1/2h(b1 + b2)
A = 1/2(7)(15) A = 1/2(15)(15 + 33)
A = 52.5 in2 A = 1/2(15)(48)
A = 360 in2
52.5 + 360
A = 412.5 in2