Answer:
B
Step-by-step explanation:
The circumference is about 3.14 (

) times bigger than twice the radius. Mathematically, this can be writted as

, where C equals the circumference and r equals the radius, or

where C equals the circumference and d equals the radius.
Answer:
-6y^2 -2
Step-by-step explanation:
The hypotenuse is always the longest side and it is the side that is opposite the right angle.
It would be 9, 9 1/2, 10, and 10 1/2. I think.