2018 JEE Mains – Solution of Question no. 89 ( MATHS, SET A) - Videos


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PQR is a triangular park with PQ=PR=200m . A T.V tower stands at the mid-point of QR. If the angles of elevation of the top of the tower at P , Q and R respectively `45^@` , `30^@` and `30^@` then the height of the tower in m is

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