9) In the equilateral triangle
ABC, AD and BE are the
medians on the sides BC
and CA respectively.
Show that AD = BE.
plz answer me quickly
Answers
Answered by
1
Answer:
AC = BC {Sides of an Equilateral Triangle}
E and D is the mid point of AC and BC
{ BE and AD are median }
So, CE = EA = CD = BD
Now, In Triangle ABE and Triangle ABD
AC = BD (Mention Above)
/_A= /_B (60°)
AB = AB (Common)
So, Triangle ABE congurent to Triangle ABD.
( by S.A.S criteria)
Therefore,BE = AD ( by CPCT )
Answered by
0
Step-by-step explanation:
area of triangle ABC is 1/2×AD×BC
also area of triangle ABC is 1/2×BE×CA
so 1/2×AD×BC=1/2×BE×CA
so. AD×BC=BE×CA
this triangle is equilateral so BC=CA
so. AD=BE
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