Question

5. Find the area of a ring whose inner and outer radii are 15 cm and 18 cm respectively.
[Take n = 3.14)
6. The areas of two concentric circles are 314 m² and 706.5 m². Find the radii of both the circles.
[Take it = 3.14
]​

Answer 1

5. Find the area of a ring whose inner and outer radii are 15 cm and 18 cm respectively.

[Take n = 3.14)

6. The areas of two concentric circles are 314 m² and 706.5 m². Find the radii of both the circles.

[Take it = 3.14

]