Vocabulary
Theorems
Tangent, Chords, Arcs
Angles & Lengths
Equation of Circle
100
To cut in half.
What is to "bisect"?
100
Congruent central angles have congruent ___ and ___.
What are "chords and arcs"?
100
The measure of arc AC is 100 degrees. The measure of angle ABC is ___.
What is "50 degrees"?
100
The measure of arc AB is 70 degrees and the measure of arc CD is 40 degrees. The measure of angle AEB is ___.
What is "55 degrees"?
100
The center is (10, 6) and radius is 6. The standard equation is ___.
What is "(x-10)^2 + (y-6)^2 = 36"?
200
A line that only touches the circle at one point.
What is a "tangent"?
200
Congruent chords are ___ from the center.
What is "equidistant"?
200
The measure of angle ABC is 60 degrees. The measure of angle ACD is ___.
What is "60 degrees"?
200
The length of AE is 8 cm, EC is 3 cm, and DE is 4 cm. The length of BE is ___.
What is "6 cm"?
200
The center is (0, -3) and radius is 7. The standard equation is ___.
What is "x^2 + (y+3)^2 = 49"?
300
A line that goes from one side of a circle to the other side of the circle.
What is a "chord"?
300
If two tangent segments are drawn to a circle from the same external point, then they are ___.
What is "congruent"?
300
The length of line AB is 14 inches and length of BC is 8 inches. The radius of the circle is ___.
What is "8.25 inches"?
300
The length of AB is 7 inches, BC is 5 inches, and CD is 4 inches. The length of DE is ___.
What is "11 inches"?
300
(x+3)^2 + y^2 = 4. The center of the circle is ___ and the radius is ___.
What is "(-3, 0) and 2"?
400
The angle formed by joining the endpoints of two chords to a point on the circle.
What is an "inscribed angle"?
400
The measure of an angle formed by a tangent and a chord is ___ the measure of its intercepted arc.
What is "half"?
400
The measure of the chord AB is 20 cm and the radius is 14 cm. The chord is ___  cm away from the center. (Nearest tenth)
What is "9.8 cm"?
400
The length of AB is 10 ft and CD is 21 ft. The length of BC is ___.
What is "4 ft"?
400
The center of the circle is (0, 0) and it passes through the point (-4, 10). The standard equation is __.
What is "x^2 + y^2 = 116"?
500
A line that intersects the circle at two points.
What is a "secant"?
500
The measure of an angle formed by 2 lines that intersects inside a circle is half the ___ of the measures of the intercepted arcs.
What is "sum"?
500
The measure of angle CAD is 40 degrees. The measure of arc DBC is ___.
What is "280 degrees"?
500
The measure of angle ABC is 52 degrees. The measure of minor arc AC is ___.
What is "128 degrees"?
500

The center of the circle is (3, 5) and it passes through the point (-4, 10). The standard equation is __.

What is "(x-3)^2 + (y-5)^2 = 74"?
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