The figure below shows a sector of radius R and Central angle of X deg.
1. If the radius is doubled and the central angle is halved, by what % the area of the sector will increase or decrease?
2. If the central angle is doubled and the radius is halved, by what % the area of the sector will increase or decrease.
3. What is the perimeter and area of the sector in terms of R and X?
#SAT #ACT
