Selina Concise Mathematics Class 9 ICSE Solutions Isosceles Triangles Selina ICSE Solutions for Class 9 Maths Chapter 10 Isosceles Triangles Exercise 10(A) 1 . In the figure alongside, AB = AC A = 48 o and ACD = 18 o . Show that BC = CD. Solution 1: 2. Calculate: ( i ) ADC (ii) ABC (iii) BAC Solution 2: 3. In the following figure, AB = AC; BC = CD and DE is parallel to BC. Calculate: ( i ) CDE (ii) DCE Solution 3: 4. Calculate x: (i) (ii) Solution 4: 5. In the figure, given below, AB = AC. Prove that: BOC = ACD. Solution 5: 6. In the figure given below, LM = LN; angle PLN = 110 o . Calculate: ( i ) LMN (ii) MLN Solution 6: 7. An isosceles triangle ABC has AC = BC. CD bisects AB at D and CAB = 55 o . Find: ( i ) DCB (ii) CBD. Solution 7: 8. Find x: Solution 8: 9. In the triangle ...
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