2nd Periodical Exam: MATH 10

Question 1

A segment whose endpoints are the center of the circle

Answer 1

Radius

Question 2

A segment with both endpoints on the circle

Answer 2

Chord

Question 3

A chord containing the center of the circle

Answer 3

Diameter

Question 4

An angle whose vertex is the center of a circle and whose sides intersect the circle

Answer 4

Central angle

Question 5

In the same circle or in equal circles, two arcs are equal if and only if their central angles are equal

Answer 5

Arc-Central Angle Equal Theorem

Question 6

In the same circle or in equal circles, equal arcs have equal chords

Answer 6

Arc-Chord Equal Theorem

Question 7

In a circle, if a radius bisects a chord and its arc, then the radius is perpendicular to the chord

Answer 7

Radius Bisects Chord Theorem

Question 8

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

Answer 8

Diameter Perpendicular to Chord Theorem

Question 9

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

Answer 9

Chord Bisects Arc Theorem

Question 10

The distance around the circle

Answer 10

Circumference

Question 11

The region consisting of all points in the plane of the circle whose distances from the center are LESS THAN THE RADIUS

Answer 11

Interior of a circle

Question 12

The region consisting of all points in the plane of the circle whose distances from the center are GREATER THAN THE RADIUS

Answer 12

Exterior of a circle

Question 13

Points in the plane of a the circle whose distances from the center are EQUAL TO THE RADIUS

Answer 13

Points on the circle

Question 14

A straight line cutting a curve at two or more points

Answer 14

Secant

Question 15

A plane curve at a given point is the straight line that “just touches” the curve at that point

Answer 15

Tangent