Examples!

=Chords and Arcs=

Find measure of arc using the equation
 * L = M / 360° (2pi//r//)**; round answer to nearest hundredth.

L = 16 r = 10 Answer: 16 = M/360(2pi10) 16 = M/360(20pi) (16/20pi)=[M/360(20pi)]/20pi 16/20pi=M/360 16/20pi=(M/360)360 360/1=16/20pi 360x16=5760 20pi=62.83185307 5760/62.83185307=91.67324722 Arc/M=91.7

Tangents to Circles
= = If KH=12 and KF=3 what is MF? what is FH?

a²+b²=c² a²+3²=12² a²[12²-3²=135] a=11.62

MF=11.62 FH=11.62

=Inscribed Angles and Arcs=

=Angles Formed by Secants and Tangents=

=Segments of Tangents, Secants, and Chords=

=Circles in the Coordinate Plane=

Find the x and y intercepts for the graph of each equation x²+y²=144 (12,0) (0,12) (-12,0) (0,-12)