You have to swap to (x,y) to (y,x) and make the y negative so it would be (-y,x) and since it’s counterclockwise it would be in the 4th quadrant
Area of circle = Pi x r*2
If diameter is 18, radius is 9.
Area = pi (3.14) x r*2 (9*2 = 81) .. 3.14 x 81 = 254.34 sq cen = total area of circle.
A circle is 360 degrees, the shaded area is 270 degrees. the shaded area is 3/4 (270/360) of the area of the circle.
254.34 x 3/4 = 190.755 sq cen
Hope this helps
Answer:
Use Desmos Graphing Calculator if you have more problems like this
Answer
90
Step-by-step explanation:
Divide 270 degrees by 3
I know that bc I had the same question on khan academy
