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Question

Akanchha measured the angles in a triangle. They came out to be 60, 80, and 70 respectively. Now she wants to know what type of triangle it is.
Can you tell what type of triangle it is?


A

Acute angled triangle

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B

Obtuse angled triangle

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C

Right angled triangle

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D

Reflex angled triangle

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Solution

The correct option is D

Reflex angled triangle


The sum of angles of a triangle measured by Akanchha turns out to be 60+80+70=210, which is impossible for the existence of a triangle since the sum of angles of a triangle cannot be greater than 180. Hence, she made a mistake.


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