Answer
First angle = 72°
Second angle = 81°
Third angle = 27°
Explanation
The sum of angles in a triangle is 180°
First angle = 72°
Second angle = 3 (Third angle)
Third angle = x = ?
This means the Second angle = 3 (Third angle) = 3x
(First angle) + (Second angle) + (Third angle) = 180°
72° + 3x + x = 180°
72° + 4x = 180°
4x = 180° - 72°
4x = 108°
Divide both sides by 4
(4x/4) = (108°/4)
x = 27°
First angle = 72°
Second angle = 3x = 3 (27°) = 81°
Third angle = x = 27°
Hope this Helps!!!
