The fraction of a circle represented by the shaded region is: S '/ S = ((8/5) * pi * r) / (2 * pi * r) Rewriting we have: S '/ S = ((8/5)) / (2) S '/ S = 8/10 S '/ S = 4/5 Then, we can make the following rule of three: (64/5) pi -------> 4/5 x ----------------> 1 Clearing x we have: x = ((1) / (4/5)) * ((64/5) pi) Rewriting: x = (5/4) * ((64/5) pi) x = (5/4) * ((64/5) pi) x = 50.24 Answer: The area of the complete circle is: x = 50.24
Its a reflection over an x-axis, whats "positive" goes "negative" and whats "negative" goes "positive" with respect to y.
If a shape is a subset (made of of quadrants then the part that lies in the second quadrant gets mapped to and part that lies in third quadrant gets mapped to
