Answer:
a) 1/32 = 0.0313
b) 21.2058 cm
c) 19.635 ft2
Step-by-step explanation:
We have a total of 8 different areas in the circle.
a) The yellow area are 2 parts of a total of 8, so the probability is 2/8 = 1/4
The number 4 is one area of a total of 8, so the probability is 1/8
So the probability of landing on a yellow and then a 4 is (1/4)*(1/8) = 1/32 = 0.0313
b) The blue area is 3 parts over 8, so we can solve this using rule of three:
Total circunference -> pi*d = 18pi cm
3/8 of the circunference -> x
x = (3/8) * 18pi = 21.2058 cm
c) The purple sections are 2 parts over 8, so following the same logic as letter b), we have:
Total area -> pi*r^2 = 25pi ft2
2/8 of the area -> x
x = (2/8) * 25pi = 19.635 ft2
