Question

please solve this question ​

Answer 1

Answer:

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Answer 2

Total summation of a triangle is 180°

So two sides are given as 60° and 30°

So we know that

Summation of three sides of a triangle is 180°

or , angle A + angle B + angle C = 180°

or , x° + 60° + 30° = 180°

or , x=180-90

or x = 90°

or angle A = 90°