an equilateral triangle has one of its sides 10 3/4 cm find its area
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Area =root over 3 ÷4×a square
= root over3 ÷4 ×90 ÷16
=root over 3 ×90÷64
= root over3 ÷4 ×90 ÷16
=root over 3 ×90÷64
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