Question

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

Answer 1

The first angle would be 40 degrees.

Answer 2

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!