Show:
Triangles
Trapezoids
Changing dimensions
Parallelograms
Mystery
100
What is the area of a triangle with base=9ft and a height=7ft?
31.5 ft
100
How are trapezoids and parallelograms or rectangles related?
Two equal trapezoids make one rectangle/parallelogram.
100

What is the perimeter of a new polygon, if the old polygon's perimeter=12 in and the dimensions are doubled?

24 inches

100
What is the formula to find the area of a parallelogram?
A=bh
100

  Solve for x if 

  2x - 6 = 4.

    x = 5

200

What is the area of a triangle with a base of 12.1m and a height of 6.4m?

38.72m2

200
What is the area of a trapezoid with b1=12 in b2=5 in and a h=7 in
59.5 in squared
200

What is the area of a new square, if the area of the old square = 16 meters squared and the dimensions are doubled?

64 squared meters

200
What is the area of a parallelogram with b=20 cm and h=11 cm?
220 squared cm
200
What is the GCF of 12, 48 and 60?
12
300
What is the base of a triangle whose A=24cm squared and a h=6cm?
b=8
300
What is the height of a trapezoid with b1=15 ft, b2=12 ft and an area of 108 squared feet?
8 ft
300

What is the new area of a triangle of b=2 cm and h=1cm and the dimensions tripled?

The new area= 9 cm squared?

300
What is the height of a parallelogram with a b=9 in and A=45in squared?
h=5
300

Evaluate this expression 10(10 X 1/2)- 15/3

45

400

How much material is it needed to cover the front of a camping tent (triangular) with a base of 5 ft and a height of 3 ft?

7.5 ft squared of material is needed

400

Tiles are being placed in front of a fireplace, to create a trapezoid shape. The height will be 24 inches, the bases are 48 and 60 inches. If the tiles cover 16 inches squared, how many tiles will be needed?

81 tiles

400

What is the new area of a rectangle whose b=21 yd h=15 yd if only 1/3 if each dimension is used?

35 yd2

400

Give an example of a triangle and a parallelogram that have the same area

A triangle with b=8, and h=3 and a parallelogram with b=3 and h=4

400

What is the volume of a rectangular prism with a length of 25 cm, a width of 10 cm, and height of 7.5 cm?

1875 cm3

500

How can you use area of triangles to find the area of rectangle?

The area of a rectangle would be twice the area of its triangles.

500
What are two possible lengths of the basis of a trapezoid with a height= 1 foot and an A=9 squared feet
Any sum of 18
500

If a rectangle has a width of 11 m, a length of 10 m, and an area of 110 m2 what would be the area if the width and the length were tripled?

990 m2

500

What is the definition of a parallelogram?

A parallelogram has two sets of parallel lines

500

If there are 2 cups in a pint, 2 pints in a quart, and 4 quarts in a gallon, how many pints are in a 2.5 gallons?

20 Pints