Solve for the angles

Question

In triangle DEF, angle E is the same as angle D. Angle F is four less than twice angle D

Answer 1

Angle D = X

Angle E = Angle D = x

 

Angle F = 2X - 4

 

x + x + (2x-4) = 180

 

4x - 4 = 180

 

4x = 184

 

x = 46

 

Angle D and E are 46.

Angle F is 2(46)-4 = 92 - 4 = 88