Question

Can someone help me with this question?

Answer 1

angle CFD=3*angle AFE=3*30=90

a line angle is 180

angleEFD=180-angleAFE-angleCFD=180-30-90=60

so X=60

Answer 2

The answer is 60 degrees.

There’s a very easy way to calculate this. If you observe the diagram, you’ll see angle AFD is a 90 degree angle. A part of it (Angle AFE) is 30 degrees. x is the other portion of that 90 degree. So you can find it out by subtracting 30 degrees from 90 degrees which results in x = 60 degrees.