LT 9a Interactive Notes

Properties of
Circles

LT 9a Day 1

radius

Labelling

Label the parts of the circle

Drag labels to their correct position on the image

chord

diameter

secant

radius

tangent

Naming Arcs of a Circle

Multiple Choice

• A

• B

• C

• D

Multiple Choice

What is the measure of arc FH?

• 70

• 35

• 140

• 88

Multiple Choice

inscribed angle: an angle with its vertex _____________ the circle

• at the center of

• on

Multiple Choice

Solve for the missing angle.

• 45^o

• 90^o

• 22.5^o

• 128^o

Multiple Choice

Solve for x. 

• 5

• 20

• 40

• 85

Draw

Solve for all the missing parts

Labelling

Label the measure of $$\angle AOB$$ , arc CD, arc BD

Drag labels to their correct position on the image

50

70

60

Draw

Find the measure of $$\angle POQ$$

Fill in the Blanks

Draw

What is true about the two inscribed angles? How can you use that to solve for x?

Dropdown

The measure of the arc from point L to M to N is ​

Select answer

. I need to take the two expressions from arc LM and arc MN and ​

Select answer

. Now solve for x. The solution is ​ ​

Select answer

What does this mean for us?

Open Ended

If two lines are perpendicular, they form a ____ degree angle.

Draw

Solve for x.

Multiple Choice

Using lines tangent to the circle, find the value of x.

• 57

• 137

• 47

• 257

Fill in the Blanks

Poll

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• I hated it

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