Question

a square OABC inscribed in a quadrant OPBQ of a circle. if OA is 20 cm find the area of shaded region .​

Answer 1

228 cm²

Step-by-step explanation:

OB=OA×2 =202cm

∴ Area of □OABC=20×20=400cm2

Area of quadrant QOP=4π×r2

                                      =41×3.14×(202)2

                                    =628cm2

∴ Area of shaded region =628−400=228cm