(1) Vertex
(2)Line
(3) One Line
(4) B
(5) Two
(6) End
(7) Two End Point.
(8) Pont
(9) Protector
(10) Vertex
(11) Sides of the angle
(12) AB and BC
(13) Place the midpoint of the protector on the vertex
(14) Reflex angle
(15) Full angle.
(16) 900 – 480 = 420
(17) 900 – 360 = 540
(18) 1800 – 1050 = 750
(19) 1800 – 680 = 1120
(20) Equal
(21) 900 – 450 = 450
(22) 180 – 45 = 135 degrees is the supplement
(23) Skew
(24) Two
(25) Two
(26) Scale
(27) Parallel lines.