Special Segments in Circles-Use Circle Notes #2 to Follow Along

Question 1

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What happens if two chords intersect in a circle?

Answer 1

The product of the pieces are congruent

Question 2

NOTE: Use Circle Notes #2 on Classroom as a follow-along

Whats a secant?

Answer 2

A segment that intersects a circle at two points.

Question 3

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What happens if two secants intersect a circle from the same exterior point?

Answer 3

The product of the exterior piece and the whole secant for each are equal.

Question 4

NOTE: Use Circle Notes #2 on Classroom as a follow-along

Whats a tangeant?

Answer 4

A segment that intersects a circle at only one poiny

Question 5

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What is the square of a tangent equivalent to?

Answer 5

The exterior piece time the whole secant

Question 6

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What happens if the diameter is perpendicular (90 degrees) to a chord?

Answer 6

It bisects the chord and the arc

Question 7

NOTE: Use Circle Notes #2 on Classroom as a follow-along

On a circle, when can two minor arcs (arcs less than 180) be congruent?

Answer 7

Only if their corresponding chords are congruent to each other.

Question 8

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What does it mean if two chords are equidistant from the center of the circle?

Answer 8

They are congruent

Question 9

NOTE: Use Circle Notes #2 on Classroom as a follow-along

What happens if two segments from the same exterior point are tangent to a circle?

Answer 9

Then the segments are congruent

Question 10

NOTE: Use Circle Notes #2 on Classroom as a follow-along

How do you find the centerpoint of the circle?

Answer 10

Use the equation of a circle (x-h)^2+(y-k)^2=r^2. The centerpoint is the opposite h and k.