http://www.ck12.org Chapter 9. Circles
- Can two tangent lines intersect inside a circle? Why or why not?
- Draw a tangent and a secant that intersect:
a. on a circle.
b. outside a circle.
Fill in the blanks.
- If the vertex of an angle is on the of a circle, then its measure is to the
intercepted arc. - If the vertex of an angle is __ a circle, then its measure is the average of the -
_____ arcs. - If the vertex of an angle is ____ a circle, then its measure is __ the intercepted arc.
- If the vertex of an angle is ____ a circle, then its measure is ___ the difference of the
intercepted arcs.
For questions 8-19, find the value of the missing variable(s).