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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:
B and C
Step-by-step explanation:
4,0 x=4 y=x-4=0
3,-1 x=4 y=x-4=-1
25-3=22
22/2=11
11
11+3=14
Answer is 11 & 14