If the side of an equilateral triangle is 7 metres; its (in sq. m.) is

1.	If the side of an equilateral triangle is 7 metres; its (in sq. m.) is:
A.	19.2
B.	21.22
C.	20.4
D.	25
E.	None of these
Answer» C. 20.4

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If the side of an equilateral triangle is 7 metres; its (in sq. m.) is:

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