NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 6: Triangles - Problems and SolutionsQuestion 153
Class 7 - Mathematics - Unit 6: Triangles - Problems and Solutions
Question. 153
Observe Fig. 6.54 and state the three pairs of equal parts in triangles ABC and DBC.
(i) Is ΔABC ≅ ΔDCB? Why?
(ii) Is AB = DC? Why?
(iii) Is AC = DB? Why?
Answer:
(i) Yes, by ASA
(ii) Yes, by CPCT
(iii) Yes, by CPCT
Detailed Answer with Explanation:
Using equal angles and included side, triangles are congruent. Then by CPCT, sides are equal.