Answer:
Step-by-step explanation:
Circumference of a circle is

Answer:
maybe always true because that is number
Part i


Substituting,

Answer: -1
Part ii
I'm not sure that one's typed in correctly but I'll solve it as written.



We're not asked to simplify it so I wont. Substituting,

Answer: 59/306
I’m pretty sure it’s a Rectangle or square
Answer:6/8
Step-by-step explanation: 4+2=6. Which is the numerator. 5+3=8. So the answer is 6/8.