DaNyaWright DaNyaWright

28-05-2017
Mathematics

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Or does anyone know how to solve this one ?

Or does anyone know how to solve this one class=

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mreijepatmat mreijepatmat

29-05-2017

The small & large triangle are similar the we can write the following proportion/ratio:

8/(8+x) = 12/(12+18) ==> 12(8+x) =8(12+18) ==> 96+12x=240

12x =240-96 ==> 12x = 144 and x=12

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