1. Geometric Probability

2. White area = Area Square – Area Circle 100 – 78.54 = 21.46
What is the probability that a dart will land in the white section given that it lands in the square.
r=5
Area of square = 10 x 10 = 100
Area of circle = πr2 = 78.54
White area = Area Square – Area Circle
100 – = 21.46
Probability = = %
100

3. Find the probability of a dart landing in the WHITE area.
A white = A big - A small
= – 113.1 =
Probability = A white = = 0.84 = 84%
A big

4. A shaded = A big - A med + A small = (50 x 50) – (40 x 40) + (30 x 30)
30 cm
40 cm
50 cm
A shaded = A big - A med + A small
= (50 x 50) – (40 x 40) + (30 x 30)
= –
= cm2
Probability = = 0.72 = 72%
2500

5. Workbook: pg 237 # 1,2, # 10