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Question: If \(\overset{\rightarrow}{P}\) and \(\overset{\rightarrow}{Q}\) denote the sides of a parallelogram...

If P→\overset{\rightarrow}{P} and Q→\overset{\rightarrow}{Q} denote the sides of a parallelogram and its area is 12\frac{1}{2}PQ, then the angle between P→\overset{\rightarrow}{P} and Q→\overset{\rightarrow}{Q} is -

A

(a) 00

A

(b) 300

A

(c) 450

A

(d) 600

Explanation

Solution

(b)

Area = PQ sin q = PQ2\frac{PQ}{2}

sin q = ½