Geometrically prove that tan 45? = 1 Share with your friends Share 0 Saksham Tolani answered this 0 View Full Answer Anshu Kumari answered this That is 45?=1 0 Anshu Kumari answered this 45degree -1 Rock Star Kiran answered this Simple draw right angle triangle with 45 degrees then measure the length of sides which r opposite to it and adjacent to it then divide both lenghts opp/adj then u will get one hence proved 0