Question

Find ar of shaded region where arcs drawn with centre a b c d respectively of a square abcd of side 12 cm

Answer 1

Answer:

arcs drawn from the points are the quadrants

area of a quadrant = θ/360*π*r²

area of 4 quadrants = 4*θ/360*π*r²

                                 =4* 90/360*πr²

                                  =4*1/4*22/7*6*6

                                 = 113.04

area of square             = a²

                                     =12²

                                      144

area of shaded region= 144-113.04

                                      =30.96