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Geometric mean (1 Viewer)

enigma_1

enigma_1

~~~~ Miss Cricket ~~~~
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Help, how do you do these questions? Especially the first one?
 
RealiseNothing

RealiseNothing

what is that?It is Cowpea
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Hyper_bole said:
YeH im stuck on that
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The triangles are similar. Whenever you have similar triangles and you want to prove something to do with the sides (in this case ) it should ring alarm bells that you have to use the ratio of the sides.

 
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