Tangents
A tangent is a line on the same plane as a circle and intersects the circle at _______ point(s)
1 point
The formula for equation of a circle is _________
(x - h)2 + (y - k)2 = r2
Congruent central angles have congruent _______
The total measure of a circle equals....
360 degrees
(see board) what is the point of tangency for line segment AB to circle C
Point D
The center of this circle is: (x + 5)2 + (y - 4)2 = 25
(-5, 4)
Congruent chords have congruent _______
angles
The center of this circle is: (x + 5)2 + (y - 4)2 = 25
(-5, 4)
(see board) how many internal and external tangents can be drawn
ET = 2
Write the equation for a circle with a center of (2, -6) and a radius of 3
(x-2)2 + (y + 6)2 = 9
Congruent arcs have congruent _________
central angles
What percentage do you need complete of Geometry Semester 2 by the end of this grading period?
75%
(see board) is line segment AB tangent to circle c?
yes because 32 + 42 = 52
The equation of circle with a diameter of 12 and center of (-3, -6) is...
(x + 3)2 + (y + 6)2 = 36
If chord AB is 4cm and is congruent to chord CD, chord CD measures
4 cm
How many facts on your cheat do you need to have to earn 2 bonus points
10
True or False and Why: Line AB intersects circle C at points D and E, so therefore Line AB is a tangent of circle C.
False: Tangent lines only intersect a circle at 1 point
Circle C has a center of (-3, 2) and one point on the circle is (-3, 11) what is the length of the radius?
9
Central angle ABC is congruent to arc DE. Central angle ABC = 12x - 1, and arc DE is x + 35, solve for X.....
x = 12
An inscribed angle on circle is _______ the measure of its corresponding arc.
half