Circles: Finding Arc Measures and Using Chords

Multiple Choice

Find the measure of the arc DBA of circle C where $$\overline{AB}$$ is a diameter.

• $$65\degree$$

• $$130\degree$$

• $$295\degree$$

• $$180\degree$$

Multiple Choice

Find the measure of the arc AD of circle C where $$\overline{AB}$$ is a diameter.

• $$65\degree$$

• $$130\degree$$

• $$295\degree$$

• $$180\degree$$

Multiple Choice

Find the measure of the arc BDA of circle C where $$\overline{AB}$$ is a diameter.

• $$65\degree$$

• $$130\degree$$

• $$295\degree$$

• $$180\degree$$

Math Response

Find the measure in degrees of the arc QRT.

Type answer here

Correct Answer: 240

Deg^°

Rad

Math Response

Find the measure in degrees of the arc TQR.

Type answer here

Correct Answer: 180

Deg^°

Rad

Multiple Choice

The indicated arcs are congruent:

• True

• False

Multiple Choice

The indicated arcs are congruent:

• True

• False

Multiple Choice

The indicated arcs are congruent:

• True

• False

Math Response

Find the measure of the red arc or chord.

Type answer here

Correct Answer: 4

Deg^°

Rad

Math Response

Find the measure of the red arc or chord.

Type answer here

Correct Answer: 144

Deg^°

Rad

​OK, the next slide is for an upcoming lesson on segment lengths. Alas, it relates to the Pythagorean Theorem (yes, it is back, just like we said it would be!!!).

Math Response

In the diagram, $$CD=5x+7$$ and $$AB=7x-3$$ . Find the radius of circle E.

[Hint, remember we only use half the length of the chord in the Pythagorean Theorem.]

Type answer here

Correct Answer: 20

Deg^°

Rad

Collaborate with a partner to complete the mini quiz, showing work on your own sheet of paper.

Match

Match the following based upon your work from the prior slide.

This is meant as a self check for your benefit!!!

• #1

• #2

• #3

• #4

• $$106\degree$$

• $$x=12$$

• $$AB=8$$

• $$r=13$$