SOLUTION: The second angle of a triangle is 5° smaller than the first. The third angle is triple the size of the first angle. Use the letter F

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Question 929561: The second angle of a triangle is 5° smaller than the first. The third angle is triple the size of the first angle. Use the letter F
Answer by sunny1992(35) About Me  (Show Source):
You can put this solution on YOUR website!
sum of all angle of triangle = 180°
let,
1st angle= F°
2nd angle= F°-5°
3rd anle= 3F°
equation
F°+(F°-5°)+3F° =180°
5F°-5°=180°
5f°=185°
F°=185°/5°
F°= 37°