circles Flashcards
what is circle
set of points who are all equally from the center
what is radius
center to a point of a circle
what is a chord
a line that both endpoints are on a point of the circle
what is diameter
chord that passes thru the center
what is circumference
area around the circle
what is secant
a line that intersects the circle in two points
what is tangent
line that intersects the circle only once
what do u call the intersection of the circle and the tangent
point of tangency
what is central angle
angle who vertex is the center of a circle
what is arc
any part of the circumference
what is major arc?
an arc that is more than half the circumference
what is minor arc
an arc that is less than of the circumference
what is congruent circle
2 or more circles with same radius but diff center
what is semi circle
an arc who is half of the circumference
what is inscribed angle
an angle whose Vertice lies on the circle
