You have only one question today How tall was the statue of Hercules if the first and second knuckle of his index finger

Thanks!

Step-by-step explanation:

Yes, your proof is correct;

However, you should supply the REASONS

angle 2 + angle 3 + angle 4 = 180 < GIVEN

angle 1 + angle 2 = 180 <--- given

angle 1 + angle 2 = angle 2 + angle 3 + angle 4  <--- substitution/ transitive

angle1 + angle 2 - angle 2 = angle 2 + angle 3 + angle 4 - angle 2 <--- subtracts angle 2 from both side

angle 1 = angle 3 + angle 4