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A trapezium PQRS is such that QR=4cm,PS=8cm angelPQR=105°angelSQR=135°QR//PS.if the height of the trapezium is 5cm use a ruler and a pair of compasses to construct trapezium PQRS

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  1. construct a 15° by bisecting a 60° angle twice.
    Now you can use that to make the 105° angle
    Note that 135 = 90+45. That makes the other angle easy.

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