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Which of the following angles form a tri...

Which of the following angles form a triangle ?
`60^@,70^@,80^@`

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If the sum of three interior angles of a triangle is equal to `180^@`, then the three angles form a triangle.
Sum of three angles
=`60^@+70^@+80^@ = 210^@`
`ne 180^@` It cannot form a triangle.
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