6.3 · Non-right-angled trianglesLesson 9 of 15
Area of a triangle = ½ab sin C
The height is b sin C, so half base times height becomes ½ab sin C, with C between a and b.
Locked
Unlock the rest of Cambridge O Level Mathematics: Trigonometry (4024).
- Every lesson, every resource, unlocked instantly.
- Track progress and pick up where you left off.
- Free preview lessons stay readable from the outline.