find the area of an equilateral triangle of side 5 cm correct to 2 places of decimal use under root 3 is equals to
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Step-by-step explanation:
area of equilateral triangle =√3/4 side²
=(√3/4)×5×5
=(√3/4) ×25
=√3×6.25 =6.25√3
= 6.25×1.73
=10.8125
10.81
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