Practical Geometry: National Book Foundation class 9 Unit # 10 Exercise 10.2 Q#4 till Q#8| NBF maths 9 Exercise 10.2 all parts Solved| Exercise 10.2 Q#4-Q#8 all parts maths class 9 nbf. Point of concurrency of angel bisector. Inscribed centre ( in-centre) Point of concurrency of Altitude. Orthocentre Point of concurrency of right bisector.Circumcentre Point of concurrency of medians. Centroid Here's a breakdown of the video: 00:00 intro 01:17 Q#4(a) 16:40 Q#4(b) 27:12 Q#5(a) 35:08 Q#5(b) 44:05 Q#6(a) 50:38 Q#6(b) 56:24 Q#7(a) 01:04:00 Q#7(b) 01:11:53 Q#8 Maths with sir Imtiaz nbf Exercise 10.2 Maths with sir Imtiaz nbf Maths with sir Imtiaz nbf Exercise 10.2class 9th federal board nbf.