Angles Inside and Outside of Circles

To find an angle outside the circle you use which of the following.

• (1/2)arc

• (1/2)(arc+arc)

• (1/2)(arc-arc)

• I don't know

Find the arc indicated.

• 185

• 75

• 110

• 100

Which is the correct equation to find m<KLM?

• x = 1/2(140 - 66)

• x = 1/2(140+66)

• 66 = 1/2(140 - x)

• 66 = 1/2(140 + x)

Find the angle indicated.

• 52

• 103

• 63

• 117

Which is the correct equation to find mArc SW?

• 40 = 1/2(x + 75)

• x = 1/2(75 + 40)

• 40 = 1/2(x - 75)

• x = 1/2(75 - 40)

Solve for x.

• 29

• 33

• 41.5

• 50

Find the measure of angle BDC.

• 35

• 40

• 75

• 110

• 105 degrees

• 97 degrees

• 135 degrees

• 140 degrees

Find the value of x.

HInt: (Arc 1 + Arc 2)/2 = inside angle

• 45

• 10

• 20

• 90

Find the value of x.

Hint: (Arc 1 + Arc 2)/2 = Inside Angle

• 88

• 38

• 34

• 44