Circle Vocabulary
Arcs/Angles
Formulas
Equations of Circles
Miscellaneous
100
This term refers to the distance around a circle.
What is circumference?
100

An angle whose vertex is the center of the circle.

What is a central angle

100

The formula for circumference.

What is 2*pi*r?

100

What is the center of the circle with the equation x^2+y^2=4?

What is (0,0)?

100

When is the last day of school?

What is May 22?

200

The term that refers to the number of square units required to fill a circle.

What is area?

200

An arc that is greater than or equal to 180 degrees?

What is a major arc?

200

The formula for the area of a circle.

What is pi*r^2?

200

What is the radius of the circle with the equation (x+4)^2+(y-4)^2=81

What is 9?

200

Name a state that starts with "M".

What is (multiple answers)?

Minnesota 

Mississippi

Montana 

Maryland

Michigan

Missouri

Massachusetts

Maine

300

A line that intersects a circle in two points.

What is a secant?

300

An angle whose vertex is on a circle.

What is an inscribed angle?

300

(mARC/360)*pi*r^2

What is the area of a sector formula?

300

Express the equation of the circle in standard form:

x^2+y^2+2x=8

What is (x+1)^2+y^2=9?

300

Who is Brandon Phillips?

What is a retired Cincinnati Reds player?

400
The point where a tangent line intersects a circle.

What is the point of tangency?

400

An arc with an arc measure of 180 degrees.

What is a semi-circle?

400
(mARC/360)*2*pi*r

What is the arc length formula?

400

Express the equation of the circle in standard form:

x^2+6y+y^2+2x=12

What is (x+1)^2+(y+3)^2=16?

400

Where is the Grand Canyon located?

What is the state of Arizona?

500
The term for a line segment that touches two points on a circle but doesn't go through the center.
What is a chord?
500

The arc measure of a whole circle.

What is 360 degrees?

500

In terms of pi, what is the area of a sector with a arc measure of 60 degrees and a radius of 12?

What is 24pi?

500

Express the equation of the circle in standard form:

x^2-8y+y^2+4x=18

What is (x+2)^2+(y-4)^2=36

500

When did the United States win their independence?

What is 1776?

M
e
n
u