PQR is an equilateral triangle. O is the point of intersection of altitudes PL, QM RN, If \[\mathbf{OP}=\mathbf{9}\]cm, then what is the perimeter of the \[\Delta \mathbf{PQR}\]?

PQR is an equilateral triangle. O is the point of intersection of alti

1.	PQR is an equilateral triangle. O is the point of intersection of altitudes PL, QM RN, If \[\mathbf{OP}=\mathbf{9}\]cm, then what is the perimeter of the \[\Delta \mathbf{PQR}\]?
A.	\[6\sqrt{3}\]cm
B.	\[12\sqrt{3}\]cm
C.	\[16\sqrt{3}\]cm
D.	\[18\sqrt{3}\]cm.
Answer» E.

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PQR is an equilateral triangle. O is the point of intersection of altitudes PL, QM RN, If \[\mathbf{OP}=\mathbf{9}\]cm, then what is the perimeter of the \[\Delta \mathbf{PQR}\]?

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