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math homework help??

Mathematics
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a trangle has two sides that measure 5cm and 7cm . which CANNOT BE THE MEASURE of the third side???????

Apr 10th, 2015

greatest angle is 179.99

cosine rule; x^2= 25+49-(2*5*7cos 179.99)=144

so x=12

hence the third side >12 cm

Apr 9th, 2015

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Apr 10th, 2015
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Apr 10th, 2015
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