1: Construct an angle of 90º at the initial point of a given ray and justify the construction. 2: Construct an angle of 45º at the initial point of a given ray and justify the construction. Steps of construction: 3. Construct the angles of the following measurements: 4: Construct the following angles and verify by measuring them by a protractor: (i) 75º (ii) 105º (iii) 135º (i) Angle of 75º: Hint: 75º = 60º + 15º Steps of construction: <!--[endif]--> 5. Construct an equilateral triangle, given its side and justify the construction. Let us construct an equilateral triangle, each of whose side = PQ Steps of construction: