which of following can be the length of BC required to construct the triangle abc such that AC=7.4cm and AB=5cm
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although in this case you have to use the concept that sum of two sides of a triangle is greater than third side.
Third side always lies between difference and sum of two sides.
so length of BC lies between 7.4 - 5 and 7.4 + 5 = 2.4 and 12.4 cm.
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