Per NCERT, an equilateral triangle with side a has its height equal to which expression?
Aa
Ba/2
Ca√2
D(a√3)/2
Answer & Solution
Correct answer: D. (a√3)/2
Per NCERT (using Baudhāyana–Pythagoras), height = √(a² − (a/2)²) = √(3a²/4) = a√3/2.
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