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JEE MATHEMATICS MCQ: PROPERTIES OF TRIANGLES

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In a triangle the length of the two larger sides are 10 and 9, respectively. If the angles are in A.P., then the length of the third side can be:
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Correct option: A
91\sqrt {91}
Option A (91\sqrt{91}) is correct because by using the properties of angles in A.P. and the cosine rule, the length of the third side is found to be 91\sqrt{91}.

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