In the figure, given below, 2AD=AB. P is mid-point of AB. Q is mid-point of DR and PR∥BS, then AQ∥BS.
A
True
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B
False
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Solution
The correct option is A True Given: PR∥BS, P is mid point of AB and Q is mid point of DR. Also, 2AD=AB ⟹2AD=AP+PB .......(AB=AP+PB) ⟹2AD=2AP .......(P is mid point of AB, i.e. AP=PB) ⟹AD=AP That is, A is mid point of PD.
Now, In △DPR, A is mid point of PD and Q is mid point of DR.
Thus, by converse of mid point theorem, AQ∥PR.
Since PR∥BS, hence, AQ∥PR∥BS.
Therefore, the given statement is true and option A is correct.