Lines and Angles

Math ⇒ Geometry

Lines and Angles starts at 6 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Lines and Angles. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 11

Explain the difference between corresponding angles and alternate interior angles when a transversal cuts two lines.

Explain why the sum of the measures of the angles on a straight line is always 180°.

If the sum of two adjacent angles is 90°, what are these angles called?

If two lines are cut by a transversal and the sum of a pair of interior angles on the same side of the transversal is 180°, what can you conclude about the two lines?

Given that angle A and angle B are complementary, and angle A = 2x + 10°, angle B = x - 5°. Find the value of x.

Given that line l is parallel to line m, and a transversal t cuts them at points A and B respectively. If angle at A is 120°, what is the measure of the corresponding angle at B?

Given two lines with equations y = 2x + 3 and y = 2x - 5, are these lines parallel, perpendicular, or neither?

If two lines are parallel and a transversal makes an angle of 75° with one of the lines, what is the measure of the alternate interior angle on the other line?

Which of the following is NOT a property of vertically opposite angles? (1) They are always equal (2) They are always supplementary (3) They are formed when two lines intersect (4) There are two pairs at the intersection

Which of the following is NOT a type of angle formed when a transversal cuts two lines? (1) Corresponding angles (2) Alternate interior angles (3) Adjacent angles (4) Supplementary angles

Which of the following is true about parallel lines? (1) They never meet (2) They have the same slope (3) The distance between them is constant (4) All of the above

Which of the following pairs of angles are always supplementary? (1) Corresponding angles (2) Alternate interior angles (3) Consecutive interior angles (4) Vertically opposite angles

Fill in the blank: If two lines are perpendicular, their slopes are ________ of each other (in coordinate geometry).

Fill in the blank: The angle between two perpendicular lines is ________.

Fill in the blank: Vertically opposite angles are always ________.

If two lines are cut by a transversal and the alternate interior angles are equal, then the lines are ________.

True or False: If two lines are not parallel, then they must intersect.

True or False: If two lines are parallel, then the sum of the measures of each pair of consecutive interior angles is 180°.

True or False: The sum of the angles on a straight line is 180°.

True or False: The sum of the measures of all angles around a point is 360°.