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Question

In a ΔABC if B is an obtuse angle then the longest side is__

A
AC
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B
AB
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C
BC
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D
None of these
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Solution

The correct option is A AC

In a ABC, B is an obtuse angle.

Let B=120o
Since, ABC contain one obtuse angle. Then, other two angles will be acute angles.

ABC is an obtuse angled triangle.

In obtuse angled triangle, longest side is the one opposite to the obtuse angle.

So, side opposite to B is AC.

In ABC, the longest side is AC.

1370161_404710_ans_1f54de43f9d245e7b70c9b76e7820e2e.png

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