Ex – 9.1 Que No. 9 Q.9) Top surface of a raised platform is in the shape of a regular octagon as shown in the figure. Find the area of the octagonal surface. Solution:- Next Ex – 9.1 Que No. 1 Ex – 9.1 Que No. 2 Ex – 9.1 Que No. 3 Ex – 9.1 Que No. 4 Ex – 9.1 Que No. 5 Ex – 9.1 Que No. 6 Ex – 9.1 Que No. 7 Ex – 9.1 Que No. 8 Ex – 9.1 Que No. 9 Ex – 9.1 Que No. 10 Ex – 9.1 Que No. 11