Solve que 11

Solve que 11 3v6 is a triangular park with PQ = PR = 200 m. A T.V. tower stands at the mid-point Of Q elevation of the top the tower at P. Q and R are respectively 450, 300 and 300 then the hei! 7. m)iS. ( 00 Iffie system of linear equations 2x+4y-3z=o (C) 50 hasanon-zero solution (x, y, z), then — 2 is equal to (A) 30 Y (B)-IO (C) 10 (D) 1006 (D)-30

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