In the diagram, AB & CD are parallel. AB = 3 cm, AX = 2 cm, BX = 2.7 cm & CD = 7.5 cm. Find BC.

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This video explains an example from Geometry using the properties of parallel lines and similar triangles.

In the diagram, AB & CD are parallel.
The lines CB and AD intersect at X.
AB = 3.0 cm, AX = 2.0 cm, BX = 2.7 cm & CD = 7.5 cm.
Find the length of BC.

The question is referred from CIE 0580 past paper for educational purpose only.

Similarity
similar triangles
properties of parallel lines
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corresponding sides of two similar triangles are always in same proportion
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