For any circle with Cartesian equation

,
we have that the centre of the circle is

, and the radius of the circle is

.
So in the case that

,
we essentially have that

.
So the centre of the circle is

, and the radius is

.
Answer:

Step-by-step explanation:
Given that,
The radius of circle, r = 50 feet
The central angle, 
We need to find the area of the sector of a circle. The formula for the area of sector is given by :

So, the area f the sector of the circle is
.
Answer:
35
Step-by-step explanation:
<u>7x2</u>+21
<u>14+21</u>
35
*The underlined problems is what you do first*
Answer
x
-1
Step-by-step explanation: