Answer:
18π ft^2
Step-by-step explanation:
The area of the circle is
pi *r^2
pi * 12^2
144pi
The part that is shaded is 45 degrees
An entire circle is 360 degrees
The fraction that is shaded is 45/360 = 1/8
Multiply the area by the fraction that is shaded
1/8 * 144 pi
18 pi
Answer: 43.988
Step-by-step explanation: The formula for the circumference of a circle is the diameter multiplied by pi. Since the diameter is 14 and it is telling us to use 3.142 as pi, we can multiply the two and get the answer.
Answer:
<h2>12.56 m</h2>
Step-by-step explanation:
The formula of a circumference of a circle:
<em>d</em> - <em>diameter</em>
<em />
We have <em>d = 4m</em>.
Substitute:
Use 3.14 for π:
Answer:
because x<0 and d × dx is not
so that means x means 20
Step-by-step explanation:
