Parts of A Circle
What is the diameter?
A segment that passes through the center of a circle with both endpoints on the edge
An inscribed angle is ________ the central angle.
Half
Arc length is part of the circle's __________
Circumference
A sector is part of the circle's _________?
Area
What is 180 degrees in radians?
pi
What is a chord?
A line segment with both endpoints on a circle.
A central angle is 97 degrees, what is the measure of the arc it creates in degrees?
97 degrees
An arc has a 180 degree angle, the circumference is 10. What is the arc length?
5
A sector has a 180 degree angle, the area is 30. What is the sector area?
15
2pi in degrees is
360
What is a central angle?
An angle with it's vertex on the center of a circle.
A central angle is 40, what is the measure of an inscribed angle that shares the same arc.
20
An arc has a 90 degree angle, the radius is 6. What is the arc length?
3pi
A sector has a 90 degree angle, the radius is 6. What is the sector area?
9pi
45 degrees in radians is _________
pi/4
What is an inscribed angle?
An angle with a vertex on the circle.
An inscribed angle creates an arc length of 84 degrees. What is the measure of the inscribed angle?
42
An arc has a length of 7pi and the circle's radius is 12. What is the corresponding angle?
105
A sector has an area of 27pi, the circle's radius is 9. What is the sector's angle?
120
300 degrees
What is a tangent line?
A line that passes through the circle only once.
A central angle and inscribed angle share an arc length. The central angle = 3x, the inscribed angle = x+6. What does x equal?
x=12
An arc has a length of 9pi and an angle of 90. What is the circle's radius?
6
A sector has an area of 24pi and an angle of 60. What is the circle's radius?
12
330 degrees is how many radians?
11pi/6