Answer:
<em>The area of a circle is πr2 and the perimeter (circumference) is 2πr</em>
<em>thank</em><em> </em><em>you</em><em> </em><em />
Answer:
9. It seems he was inactive/taking a break, as the line is completely straight.
I'm not sure about the others, but I hope that helps!
Step-by-step explanation:
A. for the circumference it is C=pi(d)=pi(2r)=pi(10)= 31.4 ft
b. for the area it is A=pi(r)^2=pi(5)^2=pi(25)= 78.5 ft squared
c. since the are is 78.5 ft squared multiply by $4.50= $353.25 to floor the circle.
For #1 the answers are
69 degrees
155 degrees
86 degrees
335 degrees
249 degrees
