what is tangent?
shares the same rule as inscribed angles, either multiplied by 2 or divided by 2.
What is true about a minor arc?
it measures less than 180
180
exterior angles
have congruent chords
what is a secant?
a line passing through two points of a curve
what is true about a major arc?
it measures greater than 180
36
two angles of a triangle add up to 65°. what is the measure of the third angle?
115
equal to the measure of its corresponding central angle
what is a chord?
a straight line drawn between two points on a circle
congruent circles
40 degrees
146
equal to twice the measure of its corresponding inscribed angle
what is a circle?
the set of all points in the plane that are a fixed distance (the radius) from a fixed point (the centre)
name the minor arc
AD
80
360
opposite angles in any quadrilateral inscribed in a circle are __________ of each other.
supplements
what is a diameter?
a chord that passes through the center of a circle
142
39
32.7
What is the measure of arc WYZ?
231