Question 1: To Construct a Simple Key

[@MelanieSimon-ky3mk]

Thanks for this

[@rodricksumbule9110]

Nice on, sir but, how do you find 60° where the is a 30°

[@tevetedu]

Good question! When look at angle 30° in this particular case, it is being measured from the vertical line. Meaning when you measure from the horizontal line it will be 90° - 30° which is 60°.