Question

prove that if the altitude of a triangle are equal, the triangle is an equilateral triangle​

Answer 1

Step-by-step explanation:

altitudes of an triangle are equal because .

1. if we take triangle ABC
2. if altitudal points are lmn
3. triangle ALM is a equal to triangle MNC,LNB by sss criteria
4. if they all are congruent then LM,MN,LN are equal by c.p.c.t.
5. therefore ,all altitudes are equal

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