Circle Tangents and Chords

In thecircle, find the measure of arc MN.

• A

• B

• C

• D

In the diagram, three tangents circumscribe a circle. Find the perimeter of the triangle.

• 48.8

• 47.4

• 39.8

• 36.4

Solve for x.

• 10

• 5

• 18

• 9

What is the measure of arc AYB

• 50

• 100

• 180

• 260

Find x.

• 4.4

• 8.3

• 9.4

• 8.8

A(n) _____ to a circle is a line, ray or segment in the plane of the circle that intersects the circle in exactly one point.

• tangent

• secant

• radius

• arc

In the diagram, TP and TQ are tangents to circle O. Determine the value of x. (Note the angles with single arcs are not necessarily congruent in this diagram.)

• 70

• 110

• 140

• 90

In a circle, if a diameter is is perpendicular to a chord, then:

• it bisects the chord

• it bisects the corresponding arc

• it bisects BOTH the chord and its arc

• none of these answers are correct

In a circle, if a diameter bisects a chord (that is not a diameter), then:

• it is a secant

• it is parallel to the chord

• it is perpendicular to the chord

• it is just shaking out the sillies

An angle is a(n) ______ if the vertex is on a circle and the sides of the angle are shords of the circle.

• right angle

• acute angle

• inscribed angle

• intercepted angle