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PQR is an equilateral triangle MN is drawn parallel to QR...

This question belongs to Arithmetic Ability Triangles
Triangles
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PQR is an equilateral triangle. MN is drawn parallel to QR such that M is on PQ and N is on PR. If PN = 6 cm, then the length of MN is:

Answer & Solution
Correct Answer: Option B
∵ ΔPQR ∼ ΔPMN
∵ ΔPQR is equilateral
∴ PQ = PR = QR
Triangles mcq solution image
So, ΔPMN must be equilateral
So, MN = PN = 6 cm
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