Math Chapter 10

Question 1

Perpendicular bisector of a chord

Answer 1

If one chord is a perpendicular bisector of another chord, then the first chord is a diameter.

Question 2

Minor arcs and their chord

Answer 2

In the same circle, or in congruent circles, two minor arcs are congruent iff their corresponding chords are congruent.

Question 3

Diameter perpendicular to a chord

Answer 3

If a diameter of a circle is perpendicular to a chord, then the diameter bisects the chord and its arc.

Question 4

Chords equidistant from the center

Answer 4

In these circle, or in congruent circles, two chords are congruent iff get are equidistant from the center.

Question 5

Proving Tangent

Answer 5

In a plane, a line is tangent to a circle iff the line is perpendicular to the radius of a circle at its endpoint of the circle.

Question 6

Tangents from a common pt.

Answer 6

Tangent segments from a common external point are congruent

Question 7

Congruent circles and congruent arcs(not thm)

Answer 7

Circles are congruent if the radii are congruent.

Arcs are congruent if they have the same measure within the same circle or in congruent circles.