Tangents to a Circle

Tangents to a Circle

What you need to know...

• Two tangents that originate from the same point and are tangent to the same circle are congruent.

• What this means:

• Ax = Ay

• Bx = Bz

• Cz = Cy

Multiple Choice

If AB=8, AE=19, and CE=17, what is the measure of segment BC?

• 6 units

• 8 units

• 8.5 units

• 11 units

Multiple Choice

What can you conclude?

• AB and AC are not congruent.

• AB= half of AC

• AC = half of AB

• AB=AC

Multiple Choice

Assume that all the lines that appear tangent are tangent. Find the perimeter

• 54
• 36
• 48
• 42

Multiple Choice

Find the length of BC.

• 2
• 3
• 9
• 14