the height of an equilateral triangle is 10 cm.its area is
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Step-by-step explanation:
-->> Height of an equilateral Δ = ( √3 / 2 ) side
=> √3 / 2 * side = 10cm
=> 20√3 / 3 = side
-->> Area of equilateral Δ = √3/4 ( side )² = ( √3 / 4 )[ 400 * 3 ]/9
= 100( √3 / 3 ) cm²
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