Find the area of the shaded region in Fig., if radii of the two conecntric circles with centrre O are 7 cm and 14 cm respectively and `angleAOC=40^(@).`

Find the area of the shaded region in fig if radii of the two concentric circles with centre O are 7 cm and 14 cm respectively and lfloorAOC=40^(@) OR Find the area of the shaded region in fig. if ABCD is a square of side 14 cm and APD and BPC are semi circles.

in fig. find the area of the shaded region [ use pi = 3.14 ]

Find the area of the ring shaped region enclosed between two concentric circles of radii 4cm and 3cm.

Find the area of the circle of radius 4.2cm.

Find the area of the shaded region in the figure, where ABCD is a square of side 14 cm

Find the area of the shaded region in the figur, where ABCD is a square of side 14 cm .

Find the area of the shaded region in Fig, if ABCD is a square of side 14 cm and APD and BPC are semicircles.

Find the surface area of a sphere of radius : 14 cm