Circle Vocab
The portion of a circle in between 2 points.
Arc
Find x.
145 = 3x - 1
48
If the arc of a circle is 80 degrees, what is the Inscribed Angle?
Inscribed Angle = 1/2 of the arc (Arc divided by 2)
40
Find x.
360 = 4x + 54 + 26
70
<ACB = (265 - 95) / 2
85
Arc Length - The distance between the 2 points on an arc.
Arc Length
Find m.
180 = m + 73 + 45
62
If the arc of a circle is 360 degrees, what is the Inscribed Angle?
Inscribed Angle = 1/2 of the arc (Arc divided by 2)
180
180 = 5x - 5
37
< = (268 - 92) / 2
88
A degree measurement, equal to the central angle that forms the intercepted arc.
Arc Measure
Find x.
180 = x + 67 + 41
72
If the arc of a circle is 144 degrees, what is the Inscribed Angle?
Inscribed Angle = 1/2 of the arc (Arc divided by 2)
72
180 = 8x + 4
22
72 = (200 - x) / 2
56
The arc found between the 2 endpoints of an angle on the circle.
Intercepted Arc
Find x.
122 = 5x + 2
24
If the arc of a circle is 242 degrees, what is the Inscribed Angle?
Inscribed Angle = 1/2 of the arc (Arc divided by 2)
121
360 = 10x + 40
32
< = (240 - x) / 2
60
A straight line segment whose endpoints lie on the edge of the circle.
Chord
Find x.
160 = 2x + 4
78
If the arc of a circle is 150 degrees, what is the Inscribed Angle?
Inscribed Angle = 1/2 of the arc (Arc divided by 2)
75
360 = 7x + 10
50
< = (135 - 59) / 2
38