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What is the length of an altitude of an equilateral triangle of side 8cm?(a) 2√3 cm(b) 3√3 cm(c) 4√3 cm(d) 5√3 cm |
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Answer» Correct answer is: (c) 4√3 cm (altitude)2=(side)2 -(side/2)2 =82 -42= 64-16 =48 Altitude=4√3 cm |
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