Answer:
x = 30°
2x = 60°
3x = 90°
Explanation:
Internal angles of a triangle sum 180°
Then:
x + 2x +3x = 180
6x = 180
x = 180/6
30
x + 2x + 3x = 180 (the total angle of a triangle)6x = 180 x = 180 : 6 = 30
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