244 x = 105 y = 100 Warm Up 1. Solve for arc ABC 2. Solve for x and y. x = 105 y = 100

Secant and Tangent Angles Vertex is INSIDE OR OUTSIDE the circle

Wheel of Formulas!!

Vertex is INSIDE the Circle NOT at the Center

Ex. 1 Solve for x 180 – 88 X 88 84 92 x = 100

Ex. 2 Solve for x. 360 – 89 – 93 – 45 45 93 xº 89 133 x = 89

Vertex is OUTside the Circle

Ex. 3 Solve for x. x 15° x = 25 65°

Ex. 4 Solve for x. 27° x 70° x = 16

Ex. 5 Solve for x. 360 – 260 260° 100 x x = 80

Tune: If You’re Happy and You Know It If the vertex is ON the circle half the arc. <clap, clap> If the vertex is IN the circle half the sum. <clap, clap> But if the vertex is OUTside, then you’re in for a ride, cause it’s half of the difference anyway. <clap, clap>