Ex – 11.1 Que No. 10 Q.10) An umbrella has 8 ribs which are equally spaced (see Fig. 11.10). Assuming umbrella to be a flat circle of radius 45 cm, find the area between the two consecutive ribs of the umbrella. Solution:- Next Ex – 11.1 Que No. 1 Ex – 11.1 Que No. 2 Ex – 11.1 Que No. 3 Ex – 11.1 Que No. 4 Ex – 11.1 Que No. 5 Ex – 11.1 Que No. 6 Ex – 11.1 Que No. 7 Ex – 11.1 Que No. 8 Ex – 11.1 Que No. 9 Ex – 11.1 Que No. 10 Ex – 11.1 Que No. 11 Ex – 11.1 Que No. 12 Ex – 11.1 Que No. 13 Ex – 11.1 Que No. 14
