Question

A Triangle whose two angels measure 30 degree and 120 degree is ?
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Answer 1

Answer:

3rd angle of the triangle=30°

Step-by-step explanation:

let the 3rd angle be x....

30+120+ x =180°(angle sum property of a triangle)

150+x =180°

x =180°-150°

x= 30°

....therefore the angles of the triangle are 30°,120°,30°.....

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Answer 2

Answer:

by angle sum property , all the angles measure 180°

Step-by-step explanation:

so here, two angles are given.. that is..

30°&120°

let the 3rd angle be =X

so, X+ 30°+ 120° = 180

=> X+150°= 180°

=> X= 180°-150°

=> X= 30°

Hope it is clear to you