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Vocabulary
Formulas
Circles
Composite Figures
Word Problems
100
A point inside a circle that is equidistant from each point on the circle.
What is the CENTER?
100
The formula for the Area of a Rectangle
A = length * width
100
A frisbee has a radius of 7.5 inches.  What is its Circumference?
C = 47.1 inches
100

What is the PERIMETER of Composite Figure #1?

Perimeter = 94.24 ft
100
If a 10 inch pizza is split between 5 people, how many square inches of pizza does each person get?

Each person gets 15.7 in2 of pizza

200
The distance around a circle.
What is CIRCUMFERENCE?
200
Two formulas for the Circumference of a Circle
C = pi * d

C = 2 * pi * r

200
A pizza has a diameter of 18 inches. What is its Circumference?
C = 56.52 inches
200

What is the PERIMETER of Composite Figure #2?

Perimeter = 73.42 m
200
A circular pothole has a circumference of 75.36 inches. A week later, it has a circumference of 150.42 inches. By how much did the diameter of the pothole increase? round to tenth of an inch.
23.9 inches
300
The distance across a circle.
What is DIAMETER?
300
The formula for the area of a triangle

Atriangle = 1/2 base * height

300
The Circumference of a circle is 94.2 inches. What is the radius?
r = 15 inches
300

What is the AREA of Composite Figure #3?

Area = 69.12 cm2

300
A baker has 2 circular pans: one with diameter of 12 inches, the other with diameter of 7 inches. How many inches longer is the circumference of the larger pan than that of the smaller pan?
15.7 inches
400
A straight line segment whose endpoints both lie on the circle.
What is CHORD?
400
Formula for the Area of a Circle

Acircle = pi * r2

400
The Circumference of a circle is 81.64 yards. What is its area?

A = 530.66 square yards

400

What is the AREA of the Shaded Region of Figure #4?

Area = 165.76 cm2

400
The hour hand on the clock is 6 inches long. The minute hand on the clock is 150% of the length of the hour hand. What distance will the tip of the minute hand move in 45 minutes?
42.39 inches
500
Pi is the ratio of ___________ to _____________.
What is:  CIRCUMFERENCE to DIAMETER?
500
Formula for the Area of a Semicircle

Asemicircle = 1/2 * pi * r2

500

The Area of a circle is 1661 m2.  What are the Diameter and the Radius of the circle? (Round to the nearest integer)

d = 46 m

r = 23 m

500

What is the AREA of Composite Figure #5?

Area = 1356.48 mm2

500
The Large Hadron Collider at CERN has a diameter of about 5.3 miles. If you rode a bike around it at a speed of 8.3 mph, how long would it take to ride around it?
2 hours