Circles: Secants, Angles, & Segments

Circles: Secants, Angles, & Segments

Geometry

To find angles you always take 1/2:

• If the angle is inside the circle then you add the other angles first.

• If the angle is on the circle then just take 1/2.

• If the angle is outside the circle then you subtract the other angles first.

Multiple Choice

Find the x by taking 1/2 of the sum of the other angles between the same lines.

• 50

• 60

• 70

• 110

Multiple Choice

Find the x.

67 = 1/2 (30 + x)

• 60

• 97

• 104

• 134

Multiple Choice

Find ∠FGI by taking 1/2 of the intercepted arc.

• 118.5

• 112.5

• 108

• 98

Multiple Choice

Find arc UVW.

• 99

• 148.5

• 162

• 198

To find angles you always take 1/2:

• If the angle is inside the circle then you add the other angles first.

• If the angle is on the circle then just take 1/2.

• If the angle is outside the circle then you subtract the other angles first.

Multiple Choice

Find x by taking 1/2 of the difference of the other angles between the secants.

• 49

• 54

• 76

• 98

Multiple Choice

Find arc FIH.

• 194

• 202

• 210

• 230

Multiple Choice

Find x by setting the products of the chord segments equal to each other.

• 1

• 2

• 3

• 4

Multiple Choice

Find x by setting the products of the chord segments equal to each other.

• 1

• 2

• 3

• 4

Multiple Choice

Find x by setting the products of the chord segments equal to each other.

• 10

• 16

• 18

• 20

Poll

Are you understanding the math concepts from this lesson today?

Open Ended

As you met the success criteria for secants, write down one important thing to remember about the lesson today.