A scalene triangle has 3 sides of different lengths and 3 unequal angles. An isosceles triangle has 2 sides of equal length. The dashes on the lines show they are equal in length. The angles at the ...

Learn about and revise angles, lines and multi-sided shapes and their properties with this BBC Bitesize GCSE Maths Edexcel study guide.

So when you extend these "lines" that are seemingly parallel to each other, they eventually have to intersect. And when this happens, naturally these lines form additional angles, such as the 50 ...

CBSE Class 9 Maths Chapter 6 Lines and Angles Extra Questions for 2020-21. Practice with these important questions to perform well in your Maths exam.