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secondary 2 | Maths
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Mei
Mei

secondary 2 chevron_right Maths chevron_right Singapore

How to explain answer to a) Length of DG is 3?

Date Posted: 5 years ago
Views: 288
J
J
5 years ago
Since the triangles are similar,

DG/DF = CG/CF

DG/9 = 4/(4+8)

DG/9 = 4/12 = ⅓

DG = 9 x ⅓

DG = 3

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Han Ning
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