The radius of a circle is 5 centimeters. What is the area of a sector bounded by a 90° arc?
Well, 90 degrees is 1/4 of a circle (360 degrees) ...so th area will be 1/4 of the total area of the circle....
Area = pi r^2 = pi (5)^2 the area of the segment will be 1/4 of this total right.....? Can you figure it out now?
