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

2. Secant and Tangent Angles
Vertex is INSIDE OR OUTSIDE the circle

3. Wheel of Formulas!!

4. Vertex is INSIDE the Circle NOT at the Center

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

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

7. Vertex is OUTside the Circle

8. Ex. 3 Solve for x. x
15°
x = 25
65°

9. Ex. 4 Solve for x.
27° x
70°
x = 16

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

11. 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>