Chapter 11 • Class 6 Mathematics
Angle Relationships
Study by topic — one focused page each
1
Complementary & Supplementary Angles
What are Complementary Angles? Two angles are complementary if their measures add up to 90° . Each angle is called the complement of the other They do…
Start this topic → 2Vertical & Adjacent Angles
Vertical Angles When two lines intersect, they form two pairs of vertical angles . Vertical angles are ALWAYS EQUAL! ┌─────┐ │ │ ───┼─────┼─── │ │ └──…
Start this topic → 3Angles in a Triangle Sum to 180°
Triangle Angle Sum Theorem The sum of the three interior angles in ANY triangle is always 180° ! ∠A + ∠B + ∠C = 180° Why is this true? If you tear off…
Start this topic →Chapter-wide tests
Online Test
10 MCQ • 30 min
IMO / Olympiad Practice
Olympiad level • 25 min
📝 Full Chapter Test (Download & Print)
35 marks • 75 min • with answer key