Topic 3.2Math AI SL SL8 flashcards

2D and 3D trigonometry

Practice Flashcards

Flip cards to reveal answers

Card 1 of 83.2.1

3.2.1

Question

State SOH-CAH-TOA.

Click to reveal answer

Track your progress — Sign up free to save your progress and get smart review reminders based on spaced repetition.

All Flashcards in Topic 3.2

Below are all 8 flashcards for this topic. Sign up free to track your progress and get personalized review schedules.

3.2.14 cards

Card 1definition

Question

State SOH-CAH-TOA.

Answer

sin = opp/hyp, cos = adj/hyp, tan = opp/adj

💡 Hint

Works in right-angled triangles only.

Card 2process

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.

Card 3definition

Question

Which side is opposite theta?

Answer

The side directly across from angle theta.

💡 Hint

Mark theta clearly before choosing ratio.

Card 4comparison

Question

Common trig mistake in IB Paper 1?

Answer

Using wrong ratio due to side mislabelling.

💡 Hint

Label opposite, adjacent, hypotenuse first.

3.2.24 cards

Card 5concept

Question

When is sine rule typically used?

Answer

When you have AAS, ASA, or SSA triangle data.

💡 Hint

Match side-angle opposite pairs.

Card 6concept

Question

When is cosine rule typically used?

Answer

When you have SAS or SSS triangle data.

💡 Hint

Great for finding unknown side first.

Card 7formula

Question

Cosine rule for side a?

Answer

a^2 = b^2 + c^2 - 2bc cos A

💡 Hint

Angle A is opposite side a.

Card 8concept

Question

Ambiguous case in sine rule means?

Answer

SSA data can produce two possible triangles.

💡 Hint

Check if 0, 1, or 2 triangles fit.

Topic 3.2 study notes

Full notes & explanations for 2D and 3D trigonometry

Math AI SL exam skills

Paper structures, command terms & tips

Want smart review reminders?

Sign up free to track your progress. Our spaced repetition algorithm will tell you exactly which cards to review and when.

Start Free