The figure above shows a right-angled triangle OAB. AOC is a minor sector enclosed in the triangle. If OA = 7 cm, AB = 6 cm, calculate the area and perimeter of the shaded region.​

The figure above shows a rightangled triangle OAB AOC is a minor sector enclosed in the triangle If OA 7 cm AB 6 cm calculate the area and perimeter of the shad class=