Paper 2 · Trigonometry
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Lesson 3 of 9
LCOL Trigonometry 3: SOHCAHTOA Finding the side
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- Same SOHCAHTOA ratios: sin = opp/hyp, cos = adj/hyp, tan = opp/adj
- To find a SIDE: write the ratio, then rearrange (multiply/divide) to get the…
- If the unknown is on the BOTTOM of the fraction, multiply both sides…
Formula used
SOH CAH TOA — rearrange to find the missing side
On page 20 of the log tables — read it off, don’t memorise.Most recent exam questions
- 2025 P2 Q2(a)(ii)
- 2024 P2 Q9(d)(ii)
- 2022 P2 Q8(d)
- 2021 P2 Q9(a)(iii)
- 2020 P2 Q5(a)
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