Question

The sum of 2 angles of a triangle is equal to its 3rd side. Find the 3rd angle​

Answer 1

Answer:

The third angle is 90°

Step-by-step explanation:

Let the 1st angle be x° and 2nd be y°

So, ATQ, 3rd angle = (x+y)° or x°+y°

So, x°+y°+x°+y° = 180° [ASP of triangle]

2x° + 2y° = 180°

2(x°+y°) = 180°

x°+y° = 180°/2

x°+y° =90° = 3rd angle

So, the 3rd angle is 90°

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Answer 2

Answer:

sum of triangle is A+B+C=180

Step-by-step explanation:

2angle=3rdside

x+x+x=180

3x=180

x =60