1) 136 is the circumference of a circle with what area? we know C=πd.
136=πd
136/π=d
d=43.290 so the radius is half that, or
r=21.645
taking area as our measure of size,
A=πr²
A=π•21.645²
A=1471.855. answer C is closest. difference is in how they and I rounded
2) c, e, and f
Answer:
Area of larger circle = 
Area of smaller circle = 
Probability that it lands in the shaded area (smaller circle):
28.26 ÷ 379.94 = 0.07438... = 0.07 (nearest hundredth)
A = 1/2 bh = 1/2 (3)(4) = 12/2 = 6
answer is B. 6 square units
0.6 matches with six-tenths because if you divide 6 and 10 together you will get 0.6
Hope this helped! :)
~Shadow
