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The second angle of a triangle is twice the first angle. the third angle is 20 degrees more than the first angle. find the first angle

The second angle of a triangle is twice the first angle. the third angle is 20 degrees more than the first angle. find the first angle
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The second angle of a triangle is twice the first angle. the third angle is 20 degrees more than the first angle. find the first angle

User Abdelfattah
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The first angle would be 40 degrees.
User Phydeaux
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All angles in a triangle add up to 180 degrees. (keep that in mind)

(this took me forever, btw)

The first angle would be 32.

32*2= 64

64+20= 84

32+64+84= 180

The key is to find the range in which the number could be derived from.

I hope this helped!
User Kubie
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