Enlargement between nested triangles

Enlargement between nested triangles

Secondary 2
TGM Original Questions

Triangle \(PST\) is enlarged to triangle \(PQR\). Given \(PT=8\) cm, \(TR=12\) cm, \(PQ=18\) cm and \(QR=36\) cm:

  1. find the scale factor
  2. find
    1. \(PS\), and
    2. \(ST\).

Solution:

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Answer:(a) \(2.5\); (b)(i) \(PS=7.2\) cm; (ii) \(ST=14.4\) cm.

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