So use half the surface area formula: SA=2πr^2 and plug in what you already know
since you don't know the radius yet, solve for it using the circumference
C=2πr
514.96=3.14(2)r
82=r
SA=2π(82)^2
SA=6.28(6724)
SA=42,226.72
so your answer is 42,226.72 yards squared
Answer:
D) it takes millions of years to form
Answer: google docs
Explanation: it’s good for writing and editing stories.
Can you rephrase the question? :)
Answer:
The cost of 9 line ad is #52
Explanation:
Given
--- 
--- 
Required
The cost of a 9 line ad
This means that:
To calculate the cost, we make use of:
---
Because 
So, we have:
