Vocabulary
Arcs & Angles
Secants & Tangents
Area & Circumference
Equations of Circles
Miscellaneous
100
This is the name for a line segment that connects the center of a circle to a point on that circle.
What is the radius?
100
This is the total number of degrees around the center of a circle.
What is 360 degrees?
100
This is the number of times a tangent line intersects a circle.
What is exactly once?
100
This equation can be used to find the area of a circle.
What is πr2?
100
These are the two pieces of information required to write the equation of a circle.
What are the center and radius?
100
This is a line segment that connects two points on the circumference circle.
What is a chord?
200
This is the longest chord of a circle. Its length is twice the length of the radius.
What is the diameter?
200
This is the name for an angle whose vertex is on the center of a circle, and whose measure is equal to its intercepted arc.
What is a central angle?
200
This is the name of the point where a tangent line touches a circle.
What is the point of tangency?
200
This is one of two equations that can be used to find the circumference of a circle.
What is 2πr or πd?
200
This is the Standard Form for the equation of a circle.
What is (x-h)2+(y-k)2=r2
200
This is the measure of the minor arc created by a central angle of 72 degrees.
What is 72 degrees?
300
This is the term that describes the distance around the outside of a circle.
What is the circumference?
300
This is an angle whose vertex lies on the circle, and whose measure is half the measure of its included arc.
What is an inscribed angle?
300
This is the measure of the angle created by a tangent line and a circle's radius or diameter.
What is 90 degrees?
300
The circumference of a circle whose radius is 12. (Round to two decimal places)
What is 75.4?
300
This is the radius and center of the circle given by the equation (x-7)2+(y+3)2=289.
What is 17 and (7, -3)?
300
This is the length of a major arc intercepted by a central angle of 240 degrees of a circle with a radius of 5 cm. (Round to two decimal places)
What is 20.9 cm?
400
This is the name for an arc whose measure is greater than 180 degrees.
What is a major arc?
400
The measure of the major arc made by an inscribed angle of 130 degrees would be this many degrees.
What is 260 degrees?
400
This is the value of x in the following diagram.
What is x=15?
400
This is the radius of a circle whose area is 201.06.
What is 8?
400
What is the center of the circle with the equation (x+8)2+(y+4)2=13?
What is (-8, -4)?
400
This is the circumference of a circle with a central angle of 30 degrees that intercepts an arc with a length of 14 inches.
What is 168 inches?
500
This is the portion of a circle enclosed by two radii and an arc.
What is a sector?
500
This is the value of x in the following equation.
What is x=10?
500
This is the value of x in the given diagram.
What is x=9?
500
The circumference of a circle whose area is 28.27. (Round to two decimal places)
What is 18.85?
500
This is the equation of the circle graphed below.
What is x2+(y-3)2=9?
500
This is the value of x in the following diagram.
What is x=12?