Question

Two angles of a triangle are 30° and 120°

Answer 1

you had mentioned two triangles of the given angles...... but where is the question....

Answer 2

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Two angles of a triangle are 30° and 120°

$\huge\tt{\bold{\underline{\underline{Answer᎓}}}}$

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As we know that the sum of angle of a triangle is 180°.

So ,here two angles say 30° and 120° are given to find the third require angle we just add the all three angle say third angle be 'x'

$= > 120 + 30 + x = 180(angle \: sum \: property)$

$= > 150 + x = 180$

$= > x = 180 - 150$

$= > x = 30$

hence,the require angle is 30°

Now ,let's add all three angle

=>120°+30°+30°=180°[proved]

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