NCERT Example 3 - Quadrilaterals
Question: ABC is an isosceles triangle in which AB = AC. AD bisects exterior angle PAC and CD ∥ AB (see Fig. 8.8). Show (i) ∠DAC = ∠BCA and (ii) ABCD is a parallelogram.
Answer: (i) ∠DAC = ∠BCA. (ii) ABCD is a parallelogram.
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