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

What is X? 2X - 6=4

x = 5

200
What is the area of a triangle with b=12.1m and h=6.4
38.72
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 polygon, if the area of the old polygon = 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 b= 5 ft and a h=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 and the scale factor= 1/3
35 squared yards
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 property states that the order of the factors/addends does not change the product/ sum

Commutative property of addition/ multiplication

500
How can you use triangles to find the area of a regular hexagon?
The hexagon is formed of 6 congruent triangles. If you find the area of one triangle you can find the area of the hexagon.
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
What is the ratio of the area of two triangles, if the corresponding side lengths have ratio of a/b?
(a/b) squared or a squared/b squared
500
What is the definition of a parallelogram?
A parallelogram has two sets os parallel lines
500
What is your favorite subject at school?
MATHEMATICS!!!!!