Find the value of all angles

Step-by-step explanation:

This means that <C and <F are congruent.

So 2x - 15 = x + 15             Add 15 to both sides

2x-15+15=x+15+ 15

2x = x + 30                        Subtract x from both sides

2x-x=x-x+30

x = 30  

I've taken the bottom 2 angles to be equal. The lettering says they

are

The Answer is a Prime polynomial, it cannot be further factorized.

Step-by-step explanation: