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எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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Kishore and Akhil work at the same office. They start for the office from their homes at \(B\) and \(C\), respectively, to reach office \(A\). Two roads, \(D\) and \(E\), meets the roads \(AB\) and \(AC\), and \(DE\) is parallel to \(BC\). Their paths to the office form a triangular shape, as shown below.
 
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1. If \(AE =\) 3 \(kms\), \(EC =\) 8 \(kms\) and \(DB =\) 18 \(kms\), then the length of \(AD\) is  \(kms\).
 
2. If \(AD =\) 4 \(kms\), \(AE =\) 24 \(kms\) and \(AC =\) 36 \(kms\), then the length of \(AB\) is  \(kms\).
 
3. Is \(DE \parallel BC\) if \(AD = 6.75 \ kms\), \(AE =\) 3 \(kms\), \(EC =\) 8 \(kms\) and \(DB =\) 18 \(kms\)?