so because im kind ill help:
Answer:
a=12
b=17
c=7
d=-3
Step-by-step explanation:
nope, i just guessed
Answer:
4.91 hope this helps :D
Step-by-step explanation:
Answer: The value of x is 5.970.
Step-by-step explanation:
Given: The square has sides length of X cm.
Let r be the radius of the circle.
The square fits exactly inside a circle with each of the vertices being on the circumference of the circle.
Then diagonal of square = diameter of circle
i.e.
[Diagonal of square =
(side)]
i.e. 
area of circle =
i.e. 

Hence, the value of x is 5.970.
I beleive the answer is B