Do the area of the circle as a whole minus (72/360 x radius^2) and then minus the other grey area.
Answer:
sone miyuki #4454 ALSO I DONT KNOWWW I CANT SEE THE IMAGE
B) {x|x ∈ U and 2x is prime}
x is greater than 1.
the only even prime number is 2
2 times anything is even.
the minimum x value is 2. 2x is 4, therefore higher than the only even number
every value 2x will have a multiple of 2 so it will not be prime.
