Formulas
Circles
Triangles
Rectangles
Grab Bag
100
The area formula for a rectangule
What is base x height?
100

The area of a circle with r=2

What is 4pi or 12.56 units squared?

100

Area of a triangle where the base is 6 and height is 5

15 units squared

100

Area of a rectangle with base=4 and height =6

What is 24 units squared?

100

Perimeter of a square where base=3

What is 12 units?

200
The circumference of a circle.
What is 2 x pi x radius ?
200

Area of a circle with radius=5

What is 25pi or 78.5 units squared?

200

Area of a triangle with base=6 and height=12

What is 36 units squared?

200

Rectangle Area with base=9 and height=14?

What is 126 units squared?

200

Circumference of a circle with radius=8

What is 16pi or 50.28 units?

300
The area of a triangle
What is 1/2 x base x height?
300

Area of a circle where r=3.14

What is 9.9pi or 30.959 units squared?

300

Area of a triangle with base 41 and height=6

What is 123 units squared?

300

Area of a rectangle with base=27 and height=87

What is 2,349 units squared?

300

What is the circumference and the area of a circle where radius=3

What is Circumference=6pi or 18.84 units

Area=9pi or 28.26 units squared

400
The area for a circle
What is pi x r^2?
400

Area of a circle with diameter=30

What is 255pi or 706.5 units squared?

400

Area of a triangle with base=99 and height=100

What is 4,950 units squared?

400

Rectangle Area with L=12 and W=4

48 units squared

400

Circumference of a circle with diameter=24

What is 24pi or 75.36 units?

500

The perimeter of a rectangle

What is 2L+2W

500

Area of circle where r = 4

What is 16pi or 50.24 units squared?

500

Perimeter of an equilateral triangle with base=11

What is 33 units?

500

Area of a rectangle with base=4.35 and height=.75?

What is 3.2625 units squared?

500

Perimeter of a rectangle with base=9 and height equal to two times the base

What is 54 units?

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