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In δAbc, D and E Are the Midpoints of the Sides Ab and Bc Respectively. F is Any Point on the Side Ac. Also, Ef is Parallel to Ab. Prove that Bfed is a Parallelogram.

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Question

In ΔABC, D and E are the midpoints of the sides AB and BC respectively. F is any point on the side AC. Also, EF is parallel to AB. Prove that BFED is a parallelogram.

Remark: Figure is incorrect in Question

Sum
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Solution


From the figure EF || AB and E is the midpoint of BC.
Therefore, F is the midpoint of AC.
Here EF || BD, EF = BD as D is the midpoint of AB.
BE || DF, BE = DF as E is the midpoint of BC.
Therefore BEFD is a parallelogram.
Remark: Figure modified.

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Chapter 11: Midpoint and Intercept Theorems - Exercise 15.2

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Frank Mathematics Part 1 [English] Class 9 ICSE
Chapter 11 Midpoint and Intercept Theorems
Exercise 15.2 | Q 7

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