If the side AB of an equilateral triangle ABC is equal to 12 cm. Calcu – McqOptions

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1.	If the side AB of an equilateral triangle ABC is equal to 12 cm. Calculate the length(in cm) of the AO, if O is the centroid of the triangle.
A.	2√3
B.	3√3
C.	4√3
D.	9√3
Answer» D. 9√3

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