Circle Vocab
a segment from the center of a circle to any point on the circle
What is radius?
What is the formula for circumference and area?
2(pi)r
(pi)r^2
An angle that starts at the center of a circle is called what?
Central Angle
Whats the formula we use to solve inscribed angles?
2 (angle) = arc
What's the capital of New York?
Albany
A line segment that goes from on edge of the circle to another edge AND passes through the center
What is diameter?
Whats the circumference of a circle whose radius is 4.
8pi
Fill in the blank: Central Angles are _______ to their arcs.
Equal
What arc does angle DBC use?
Arc CD
6
an arc of a circle whose length is more than the length of half the circle
What is major arc?
What is the area of a circle whose radius is 7.
49pi
What is the measure of arc AC?
130 degrees
What is the measure of arc AB?
90 degrees
What can you catch but not throw
a line segment that continues past the circle
What is a secant?
Whats the radius of a circle whose area is 78.6.
What is 5
What is the measure of arc DBA?
220 degrees
What is the measure of angle DBC?
22 degrees
What time does period 8 start?
12:48
An angle whose vertex is on the circle
What is an inscribed angle?
Whats the radius of a circle whose circumference is 56.5.
What is 9?
What is the measure of arc ADC?
230 degrees
What angle is equal to angle ADB?
Angle BEA
Im thinking of a number between 1 and 40, what is it.
37