2 answers:
Answer:
3rd angle of a triangle = x = 75°
Step-by-step explanation:
1st angle of a triangle = 50°
2nd angle of a triangle = 55°
3rd angle of a triangle = x = ?
We know that sum of three angle of triangle = 180°
1st angle of a triangle + 2nd angle of a triangle + 3rd angle of a triangle = 180°
50° + 55° + x = 180°
105° + x = 180°
x = 180° - 105°
x = 75°
3rd angle of a triangle = x = 75°
Answer:
75
Step-by-step explanation:
The three angles of a triangle add to 180 degrees
50+55+x = 180
Combine like terms
105+x = 180
Subtract 105 from each side
105-105+x = 180-105
x = 75
The largest angle is 75
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