[" 8.Find the area of a ring whose outer and inner radii are respectively "],[23cm" and "12cm" ."]

Find the area of a ring whose outer and inner radii are respectively 23 cm and 12 cm.

Find the area of a ring whose outer and inner radii are respectively 20 cm and 15 cm

Find the area of a ring whose outer and inner radii are respectively 20 cm and 15 cm

Find the area of a ring whose outer and inner radii are 12 cm and 10cm respectively.

Find the area of a ring whose inner and outer radii are 15 cm and 18 cm respectively. Take pi=3.14

Find the area of a rectangle whose length and breadth are12cm and 4cm respectively

Find the area of a rectangle whose length and breadth are12 cm and 4 cm respectively

Find the area of the rectangle whose sides are 10 cm, 12 cm respectively.

A race track is in the form of a ring whose outer and inner circumference are 506 m and 440 m respectively. Find the width of the track and also the area.

A race track is in the form of a ring whose outer and inner circumference are 506 m and 440 m respectively. Find the width of the track and also the area.