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Triangle ABC is an equilateral triangle …

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Triangle ABC is an equilateral triangle of side 2a units. Find each of its altitudes
  • 3 answers

Ranvijay Kumar 4 years, 8 months ago

Mast questions Anjali

Kanak Chauhan 4 years, 8 months ago

Altitude be √3a

Gaurav Seth 4 years, 8 months ago

Answer:

Each altitude of the equilateral triangle is equal to 

Thus,

To find:

Each of its altitudes = ?

Solution:  

Given : ABC is an equilateral triangle of side 2a.

In equilateral triangle, △ADB = △ADC

& ∠ADB = ∠ADC (Both 90 degree as AD ⊥ BC)

Thus,  △ ADB ≅ △ ADC (By R. H. S. Congruency)

As per CPCT i.e. they are corresponding parts of congruent triangle,

BD = DC  

Using Pythagoras theorem,

Hence,

Thus, the altitudes of the given equilateral triangle is equal to 

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