More Angles In Circles

More Angles In Circles

4.7.21

Fill in the Blanks

Angles 1 and 2 are equal to the average of their intercepted arcs AC and DB

m<1 = (x + y) / 2

x = (91 + 85)/2 = 176/2 = 88 [Y has to be supplementary]

Fill in the Blanks

Fill in the Blanks

Multiple Choice

What is the value of x?

• 3

• 5

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• 9

With tangents and secants, there is an intersection point OUTSIDE the circle. Formula is half the difference of the arcs.

The question asks us to find the outside angle C. How can we do that if we're only given one angle?

Fill in the Blanks

Fill in the Blanks

Fill in the Blanks

Multiple Choice

Set up an equation -- scrap paper will help! Find x as usual.

• 5

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• 9

• 11

Multiple Choice

It's the final slide! What is the value of x?

• 16

• 25

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• 36