The smaller sector is 360-255=105 degree it is 105/360 portion of the whole circle, and the area of the whole circle is πr², r is 14 so the area of the smaller sector is (105/360)*π*14² run those numbers through your calculator, use 3.14 for π, you get 179.5
if you are looking for area of the larger sector, it would be (255/360)*π*14²=435.94
So if 360 is increased by 25%, you would end up with 450 (360 x 1.25), than if the result, 450 is decreased by 50% ( 450 x .50 = 225) (450 - 225 = 225) you would end up with 225.
