Answer:
A =5407.865 in ^2
Step-by-step explanation:
The circumference is given by
C = 2 * pi *r
260.62 = 2 * 3.14 *r
260.62 =6.28r
Divide each side by 6.28
260.62/6.28 = r
41.5 = r
To find the area, use
A = pi r^2
A = 3.14 (41.5) ^2
A =5407.865 in ^2
Answer:
16 pi
Step-by-step explanation:
The base is the circle
A = pi r^2
A = pi (4)^2
A = 16 pi
To calculate %, just remember "Is Over Of" i<span>n this case, is = 90, and of = 36 </span><span>So, 90/36 = 2.5, or %250.</span>
The circle will have an area of approximately 78.5 square inches
Answer:
The
numerator is 360
Step-by-step explanation:
What we need to do here is make n the subject of the formula;
a = 180(n-2)/n
an = 180n-360
180n - an = 360
n(180-a) = 360
n = 360/(180-a)