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In the Given Figure; Ad is Median of δAbc and E is Any Point on Median Ad. Prove that Area (δAbe) = Area (δAce) - Mathematics

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Question

In the given figure; AD is median of ΔABC and E is any point on median AD.
Prove that Area (ΔABE) = Area (ΔACE).

Sum

Solution

AD is the median of ΔABC. Therefore it will divide ΔABC into two triangles of equal areas.

∴ Area (ΔABD)= Area (ΔACD)           ...(i)

ED is the median of ΔEBC
∴Area (ΔEBD)= Area (ΔECD)            ...(ii)

Subtracting equation (ii) from (i), we obtain
Area (ΔABD)- Area (ΔEBD) = Area (ΔACD)- Area (ΔECD)
Area (ΔABE) = Area (ΔACE).
Hence proved

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Triangles with the Same Vertex and Bases Along the Same Line
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Chapter 16: Area Theorems [Proof and Use] - Exercise 16 (B) [Page 201]

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Selina Concise Mathematics [English] Class 9 ICSE
Chapter 16 Area Theorems [Proof and Use]
Exercise 16 (B) | Q 2 | Page 201
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