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Plzzz answer above question.
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Answer:√3a
Step-by-step explanation:
Since it is equilateral triangle, AB = BC = CA = 2a. Draw a perpendicular bisector AD to BC such that BD = CD = a.
Now in ΔABD by Pythagoras' theorem,
(BD)² + (AD)² = (AB)²
=> a² + (AD)² = (2a)²
=> (AD)² = 4a² - a²
=> AB =
=> AB =
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