WELCOME Math 2 Last Night’s HW: None Chapter 9: Circles

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Presentation transcript:

WELCOME Math 2 Last Night’s HW: None Chapter 9: Circles Tonight’s HW: 10.1 Worksheet Test: Next Wednesday/Thursday!

Warm Up 1. Factor: 2x2 + 3x - 9 Solve by factoring:

Chap 10: Day 1 Learning Target Finding angles and arc lengths within Inscribed Polygons in circles.

Inscribed Polygon If all vertices of a polygon lie on the side of a circle, then the polygon is Inscribed in the circle and the circle is circumscribed about the polygon.

Inscribed Triangles and Quadrilaterals Right ∆ Theorem An inscribed ∆ is right IFF the hypotenuse is the diameter of the ⊙ AB is a Diam./Hypotenuse. Quadrilateral Theorem A quad. can be inscribed in ⊙ IFF the opposite angles are supplementary ∠𝑨+∠𝑫=∠𝑩+∠𝑪=𝟏𝟖𝟎⁰ A B A C C B D