Abc is a right triangle in which b is a right angle, ab= 1, ac=2 and bc= square root of 3. cos c x sin a=

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2