Vocab
A line segment that connects the center of a circle to a point on that circle.
What is the radius?
The number of times a tangent line touches a circle.
What is exactly once?
The longest chord of a circle, or twice the radius.
What is the diameter?
An angle whose vertex is on the center of a circle, and whose measure is equal to its intercepted arc.
What is a central angle?
The distance around the outside of a circle, or a circle's length.
What is the circumference?
The radius of a circle with area of 201.06.
What is 16?
An angle whose vertex lies on the circle, and whose measure is half the measure of its included arc.
What is an inscribed angle?
The measure of the angle created by a tangent line and a circle's radius or diameter.
What is 90 degrees?
Write the equation of a circle that passess through (5,0) (-5,0) (0,-5).
x^2 + y^2 = 25
An arc greater than 180 degrees.
What is a major arc?
The circumference of a circle whose radius is 12.
What is 75.4?
The measure of the major arc made by an inscribed angle of 130 degrees.
What is 260 degrees?
write an equation of a circle with center(3,3) and tangent to x=7.
(x-3)^2 + (y-3)^2 = 16
What is the equation of a circle that has diameter end points at (11,8) and (5,10)
(x-8) ^2 + (y-9)^2 = 10
The portion of a circle enclosed by two radii and an arc.
What is a sector?
The circumference of a circle whose area is 28.27.
What is 18.85?
The value of x, if an inscribed angle has a measure of 34 degrees, and its intercepted arc has a measure of 4x+8.
What is 15?
Write an equation of a circle tangent to x=0 and y=0 in quadrant 2
various
Write the equation of a circle in quadrant 3 with radius 4 and tangent to x= -2.
(x+6)^2 + (y+4)^2 = 16