S Chand ICSE Mathematics Class 9 Solution Tenth Chapter Pythagoras Theorem Exercise 10B (1) ABCD is a square, prove that AC2 = 2AB2 (2) In Fig. 10.26, AB = BC = CA = 2a and segment AD ⊥ side BC, Show that (i) AD = a √3, (ii) area of ΔABC = a2√3 Solution: (3) […]