Junior Cycle · Trigonometry
⏱ Tested in 3 exam questions since 2022
Lesson 3 of 6
JCHL 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 unknown on its own — do NOT use the inverse button
- If the unknown is on the BOTTOM of the fraction, multiply both sides by it first
Most recent exam questions
- 2025 Q8(b)
- 2023 Q8(d)
- 2022 Q8(c)
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