Angles

1) Which of the following represents a right angle?

• A) 120° angle

• B) 90° angle

• C) 45° angle

• D) 180° angle

2) An acute angle is an angle that measures:

• A) Greater than 90° and less than 180°

• B) Less than 90°

• C) Exactly 90°

• D) Exactly 180°

3) Which of the following represents a line segment?

• A) A line that extends infinitely in both directions

• B) A part of a line with a starting and an ending point

• C) A part of a line with only a starting point

• D) Two lines that never meet

4) A ray is:

• A) A part of a line with a starting point and extends infinitely in one direction

• B) A straight line that extends infinitely in both directions

• C) A part of a line with two endpoints

• D) Two lines that meet at a single point

5) If two lines never meet no matter how far they extend, they are:

• A) Perpendicular

• B) Intersecting

• C) Parallel

• D) Equal

6) Which of the following statements is true?

• A) A line segment has no end

• B) A straight line has two endpoints

• C) A ray has a starting point and extends infinitely in one direction

• D) A ray has two endpoints

7) Which of the following is called a straight angle?

• A) 90° angle

• B) 45° angle

• C) 180° angle

• D) 360° angle

8) Perpendicular lines:

• A) Never meet

• B) Meet and form a right angle

• C) Meet and form an acute angle

• D) Are always parallel

9) If two lines form a right angle when they intersect, they are:

• A) Parallel

• B) Perpendicular

• C) Equal

• D) Overlapping

10) Which of the following shapes contains an obtuse angle?

• A) A triangle with a 90° angle

• B) A triangle with a 60° angle

• C) A triangle with a 120° angle

• D) A square