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geometry/trigonometry

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Triangle ABC is similar to triangle APQ with angle CBA equal to angle QPA and angle A common to both triangles. the length of sides AB, AP and PQ are 90cm,60cm and 30 cm. calculate the length of the side BC

  • geometry/trigonometry - ,

    ab/ap = 90/60 = 3/2
    so
    bc/pq = 3/2
    but pq = 30
    so
    bc = 30 (3/2) = 45

  • geometry/trigonometry - ,

    cheers Damon

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