Triangles
Trapezoids
Formulas
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 formula for area of a rectangle?

A = bh

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

Give an equation that makes this value of X true.

X= 5

ANSWERS WILL VARY


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 does the s stand for in the formula for area of a square?

side

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 area formula for a triangle?

A = 1/2 b h 

OR

A = (bh)/2

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 formula for the area of a trapezoid?

A = 1/2 (b1 + b2) h

OR

A = (b1 + b2)h

          2

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 property estates 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

Explain how you'd find the area of a regular octagon

Find the area of one of the triangles and then multiply your result by 8

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!!!!!
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