What is the sum of all the angles in a triangle?

100

^{\circ}

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180

^{\circ}

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270

^{\circ}

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120

^{\circ}

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Solution

The correct option is B 180 $^{\circ}$
From Legendre's postulate, we know that the sum of angles of any triangle is a constant and is equal to two right angles $180^{o}$ .

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Similar questions

The sum of all angles of a quadrilateral is
(a) $180^{\circ}$
(b) $270^{\circ}$
(c) $360^{\circ}$
(d) $480^{\circ}$

∠ B O C = 120^{\circ}

∠ x =

Choose the correct option:

If two angles are supplementary, then their sum is ___________

A. 90°

B. 180°

C. 270°

D. 360°

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