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        1. 8.As shown in the diagram.the triangle PQR has PR=14cm and PQ=10cm. The side RQ produced meets the perpendicular PS at S, so that QS=5cm. The perimeter of triangle PQR is cm. 查看更多

           

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          As shown in the diagram(如圖),the triangle PQR has PR=14cm and PQ=10cm. The side RQ produced meets the perpendicular PS at S, so that QS=5cm. The perimeter(周長) of triangle PQR is _____cm.

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          As shown in the diagram(如圖),the triangle PQR has PR=14cm and PQ=10cm.The side RQ produced meets the perpendicular PS at S,so that QS=5cm.The perimeter(周長) of triangle PQR is
          30
          30
          cm.
          如圖,在△PQR中,PR=14cm,PQ=10cm.過點P作PS⊥RQ交RQ的延長線于點S,QS=5cm,則△PQR的周長為
          30
          30
          cm.

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