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it is 8 cm good question
Aakash595:
give solution plz
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wrong answer dude
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Let one side of the triangle be a
We know in an equilateral triangle perpendicular itself is the median
so AD divides BC into two equal parts BD = DC a/2
AD² = AB² - BD²
AD² = a² - a² / 4 = (4a² - a²)/4 = 3a²/4
AD² / BC² = x = 3a²/4 ÷ a² = 3a²/4 × 1/a² = 3/4
x = 3/4 = 0.75
We know in an equilateral triangle perpendicular itself is the median
so AD divides BC into two equal parts BD = DC a/2
AD² = AB² - BD²
AD² = a² - a² / 4 = (4a² - a²)/4 = 3a²/4
AD² / BC² = x = 3a²/4 ÷ a² = 3a²/4 × 1/a² = 3/4
x = 3/4 = 0.75
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