Practice Flashcards
Flip to reveal answersState SOH-CAH-TOA.
Track your progress — Sign up free to save your progress and get smart review reminders based on spaced repetition.
All 4 Flashcards — Right-Angle Trigonometry
Sign up free to track progress and get spaced-repetition review schedules.
Question
State SOH-CAH-TOA.
Answer
sin = opp/hyp, cos = adj/hyp, tan = opp/adj
💡 Hint
Works in right-angled triangles only.
Question
When should you use inverse trig?
Answer
When angle is unknown and side ratio is known.
💡 Hint
Use sin^-1, cos^-1, tan^-1 on GDC.
Question
Which side is opposite theta?
Answer
The side directly across from angle theta.
💡 Hint
Mark theta clearly before choosing ratio.
Question
Common trig mistake in IB Paper 1?
Answer
Using wrong ratio due to side mislabelling.
💡 Hint
Label opposite, adjacent, hypotenuse first.
Read the notes
Full study notes for Right-Angle Trigonometry
Topic 3.2 hub
2D and 3D trigonometry
More from Topic 3.2
All flashcards in this topic
Math AI exam skills
Paper structures & tips
Track your progress with spaced repetition
Sign up free — Aimnova tells you exactly which cards to review and when, so you remember everything before your IB exam.
Start Free