Sum of interior angle and exterior angle at a vertex is:

90^{\circ}

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180^{\circ}

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270^{\circ}

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360^{\circ}

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Solution

The correct option is B $180^{\circ}$ .
The sum of the internal angle and the external angle on the same vertex is 180°.

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Similar questions

360^{o}

= \frac{360^{\circ}}{n}

= 180^{\circ}

n = \frac{360^{\circ}}{E x t e r i o r a n g l e}

= \frac{(n - 2) \times 180^{\circ}}{n}

If the side of a triangle are produced, then the sum of the exterior angles i.e. a+b+c is equal to

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