Introduction to Sine Law and Cosine Law (Non-Right Triangles)
10 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest — every one with a full worked solution. Work through them free, no account needed.
Sample: the first question, solved
Which condition set requires the sine law (not the cosine law) to solve a triangle?
📘 Worked solution
✓The sine law solves AAS or ASA triangles — cases with two angles and a side.
And one from the hard end
The cosine law a² = b²+c²−2bc·cos(A) reduces to the Pythagorean theorem when angle A equals what?
Solution shown after you try it in practice mode.
Work through all 10, easiest to hardest
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