The area of this circle is 72π m^2 what is the area of a 45° sector of this circle

A 45° sector is 1/8 of the area of the circle, so is (72π m^2)/8 = 9π m^2.

Where the white dots are is where your points should be plotted.a translation is simply just moving something from one place to another. in this case, you would move each plot point of the original shape 2 units up, and 5 units to the left.