0580/23 Oct/Nov 2021, Question 2: Angles in Parallel Lines
Cambridge IGCSE Mathematics 0580 · Paper 23 (Extended) · Calculator · 2 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Two parallel lines are crossed by a straight line, with angle x° at the upper intersection and 132° at the lower intersection. Find x.
Summarised in our own words. Use the official paper for the exact wording and the diagram.
Solution · 2 marks
- 1Use corresponding angles: the angle matching 132° at the upper crossing is also 132°
- 2x° and that 132° angle lie on a straight line, so they add to 180°
- 3x = 180 − 132 = 48
Answer48
Stuck on a step? Read the free lesson: Angles in Parallel Lines
Practise more angles in parallel lines questions
Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on angles in parallel lines
Also searched as: 0580/23/O/N/21 · 0580_w21_qp_23 · 0580 w21 23 · question 2.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.