A) \[\frac{a}{2}\]
B) \[\frac{1}{2}a(\sin \theta +\cos \theta )\]
C) \[a(\sin \theta +\cos \theta )\]
D) \[a\]
Correct Answer: A
Solution :
Mid-point will be \[\left( \frac{a\,\sin \theta }{2},\,\frac{a\,\cos \theta }{2} \right)\] and distance from origin will be \[\sqrt{{{\left( \frac{a\,\sin \theta }{2}-0 \right)}^{2}}+{{\left( \frac{a\,\cos \theta }{2}-0 \right)}^{2}}}=\frac{a}{2}\].You need to login to perform this action.
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