2.  Solve problems involving geometric probability.  Solve problems involving sectors and segments of circles.

3.  If a point in region A is chosen at random, then the probability P(B) that the point is in region B, which is in the interior of region A, is A B P(B)= area of region B area of region A

4. Suppose this is a dart board. You are trying to hit the red part of the board. Determine the probability that this will happen. A = 81 units 2 A = 25 units 2 P(Red) = 25 81

5.  If a sector of a circle has an area of A square units, a central angle measuring N°, and a radius of r units, then  and recall… P(B) = area of sector   area of circle NºNº r O    r   Sector- a region of the circle bounded by its central angle and its intercepted arc.

6. 12 Find the area of the blue sector. Keep in terms of pi. Find the probability that a point chosen at random lies in the blue region.

7.  Segment-region of a circle bounded by an arc and a chord. arc chord segment To find the area of a segment, subtract the area of the triangle formed by the radii and the chord from the area of the sector containing the segment. N 360 (  r 2 ) - 1∕2bh

8. 14 Find the area of the red segment. Assume that it is a regular hexagon. First find area of a sector. Then find the area of a triangle. Then subtract the area of the triangle from the area of the sector to find the area of the red segment. What is the probability that a random point is in the red segment?

9. GGEOMETRY Pg.625 #7-23, 26 - 28