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Janice
Janice

Form4 chevron_right Malaysia

Help pls

Date Posted: 6 years ago
Views: 865

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Hazeeq Abdullah
Hazeeq Abdullah's answer
7 answers (Tutor Details)
1st
the most important concept here is all the triangles in the large triangle PQR are similar triangles which are all equilateral. upon drawing the smaller triangle of KLM, naturally, another 3 triangles which are exactly the same are formed. in terms of length, since the midpoint of the larger triangles sides are used vertices, the length is effectively halved (from k to 0.5k). as such, each time, the total perimeter is halved, making the common ratio 0.5.