PDF chapter test TRY NOW

An umbrella has \(8\) ribs that are equally spaced (see Fig.). Assuming the umbrella to be a flat circle of radius \(45 cm\), find the area between the two consecutive ribs of the umbrella.
 
YCIND_240416_6148_Circles_12.png
 
Ans:
 
Note: Enter the answer upto one decimal place.