Question

10. From a circular plate, a ring was cut of radius 4 cm, whose inner radius is 2 cm. Find the area ofring​

Answer 1

Answer:

The area of the ring is 37.7 cm^2

Step-by-step explanation:

• The area of a ring is given by:                                                                                       π× [(outer radius)^2-(inner radius)^2]
• simply we'll put the values now as both the radii are in the same units.
• π×[(4)^2-(2)^2] which one solving we get 37.6991118
• Rounding off 37.6991118 up to 1 decimal place we get our answer as 37.7 cm^2