Question 144 (ii)
ABC is an isosceles triangle with AB = AC and D is the mid-point of base BC (see the figure)
Is ΔABD≅ΔACD? If so why?
Given, AB = AC and BD = CD
Also, AD = AD Hence, ΔABD≅ΔACD by SSS congruence criterion.
Question 144 (i)
ABC is an isosceles triangle with AB = AC and D is the mid-point of base BC (see the figure) State three pairs of equal parts in the ΔABD and ΔACD
Question 11 In the following figure, E is a point on side CB produced, of an isosceles triangle ABC, with AB = AC. If AD ⊥ BC and EF ⊥ AC, prove that ΔABD∼ΔECF.