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Std: IXMATHEMATICS1. ABCD and PORC are rectangles. Q is the midpoint of AC. Show that P is the midpointof DC and R is the midpoint of BC. Also find the ratio of ar (ABCD) and ar (PQRC) |
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Answer» By mid pt. theromPB=1/2AD and PB is parallel to ADtherefore in triangle DACby converse of mpt DA is parallel to PB and B is half of ACtherefore P is the mid pt. of DCsimilarly in triangle CABby converse of mpt R is the mid pt. of BCRatio=1:4 since P is mpt of DC and PB is half of AD |
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