Key Concepts
Circles and Circumference
Measuring Angles/Arcs
Arcs and Chords
Inscribed Angles
100
This is equal to pi*d or 2 * pi * r.
What is circumference?
100
The name of a circle with radius AX and diameter AB.
What is circle X?
100
The arc measure for a central angle of 21 degrees.
What is 21 degrees?
100
Center at (0, 0) and Radius of 2
What is x^2 + y^2 = 4?
100
The measure of inscribed angle with intercepted arc measure 50.
What is 25?
200
The sum of the measures of the central angles.
What is 360 degrees?
200
This is a special chord.
What is diameter?
200
The arc measure of a semicircle.
What is 180 degrees?
200
The measure of arcCD of the circle with chord AB congruent to chord CD and measure of arcAB is 60.
What is 60?
200
The measure of intercepted arc with an inscribed angle 90.
What is 180?
300
This is proportional to the length of an arc.
What is the length of the circumfence?
300
The circumference of a monster truck tire with a diameter of 70 inches.
What is 219.91 inches?
300
This arc is congruent to arcHJ if and only if chord FG is congruent to chord HJ.
What is arcFG?
300
The length of chord FG in circle with congruent arcs JK and FG and chord JK = 2x + 4. (x = 3)
What is 10?
300
The measure of intercepted arc with inscribed angle 23.
What is 46?
400
This is perpendicular to chords, bisects chords, and bisects intercepted arcs.
What is diameter?
400
The diameter of a circle with circumference 314.16 inches.
What is 100 inches?
400
The arc length of a semicircle with diameter length 10 miles.
What is 15.71 miles?
400
The measure of the two arcs created with radius perpendicular to the chord of an arc measure 98.
What is 49?
400
The measure of inscribed angle with intercepted arc measure 170.
What is 85?
500
This is half the measure of its intercepted arc.
What is the measure of an inscribed angle?
500
The radius of a circle with circumference of 20 feet.
What is 3.18 feet?
500
Arc length of circle with diameter 29 inches and central angle 240 degrees.
What is 60.74 inches?
500
The distance from center of circle to chord with a radius of 15 and chord length of 24.
What is 9?
500
The measure of the inscribed angle with a central angle 90.
What is 45?
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