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Class 7 Parallel and Intersecting Lines worksheet
CBSE Mathematics. Vertically opposite angles, linear pairs, perpendicular lines, transversals: corresponding, alternate and co-interior angles. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
Two lines cross. One angle is 50°. The angle vertically opposite it is:
- 130°
- 50°
- 40°
- 310°
Answer
(b) 50°
vertically opposite angles are equal
- 2.
Two angles form a linear pair. One is 72°. The other is:
- 108°
- 72°
- 288°
- 18°
Answer
(a) 108°
180° − 72°
- 3.
When two lines cross, the angles opposite each other are called:
- corresponding angles
- alternate angles
- vertically opposite angles
- co-interior angles
Answer
(c) vertically opposite angles
Section B · short answer
- 4.
Two lines cross and one of the angles is 128°. Find the other three angles.
Answer
52°, 128°, 52°
vertically opposite angles are equal; neighbours add up to 180°
- 5.
Two angles form a linear pair. One is 20° more than the other. Find both.
Answer
80° and 100°
(180° − 20°) ÷ 2 = 80°
Section C · long answer
- 6.
A straight road crosses two parallel railway tracks, making a 95° angle with the first track. Find the corresponding angle at the second track, the alternate angle, and the co-interior angle.
Answer
95°, 95°, 85°
corresponding and alternate angles are equal; co-interior angles add to 180°
Fresh sheets for your child
In the app, every Parallel and Intersecting Lines sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.