III. Identify the following:
28. It is a straight mark with two arrow heads. Have infinite length but no width and thickness.
29. A flat surface that extends infinitely in all directions.
30. It is represented by a dot. Has no length, width, or thickness; occupies no space.
31. It is the building blocks of geometry. They do not have formal definition, hence, to have an
understanding of their meaning, they offered general description.
32. It is a statement that clarifies or explains the meaning of a word or a phrase.
33. It is a figure formed by two rays.
34. It is a point where two lines meet to form an angle.
35. It refers to two figures or objects having the same shape and size.
36. It is a polygon with three edges and three vertices. It is considered as one of the basic shapes in
geometry.
37. It is the longest side of a right-angled triangle, the side opposite the right angle.
38. It is a statement taken to be true without proof.
39. If three sides of a triangle are congruent respectively to three sides of another triangle, then the
triangles are congruent.
40. If two angles and an included side of a triangle are congruent respectively to two angles and an included
side of another triangle, then the triangles are congruent.
41. If two sides and an included angle of a triangle are congruent respectively to two sides and an included
angle of another triangle, then the triangles are congruent.
42. If two legs and an included side of a triangle are congruent respectively to two angles and an included
side of another triangle, then the triangles are congruent.
43.If a hypotenuse and an acute angle of a triangle are congruent respectively to a hypotenuse and an acute
angle of another triangle, then the triangles are congruent.
44. If a hypotenuse and a leg of a triangle are congruent respectively to a hypotenuse and a leg of another
triangle, then the triangles are congruent.
45.It is a line segment that aside from splitting another segment into two equal parts, it also forms a
right angle (90' or 90 degrees) with the said segment.
46.It states that a point is on the perpendicular bisector of a segment if and only if it is equidistant from
the endpoints of the segment.
47.It is a ray or a line segment that bisects one of the vertex angles of a triangle forming two congruent
angles.
48.It states that an angle bisector of a triangle will divide the opposite side into two segments that are
proportional to the other two sides of the triangle.

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