Paper 2 · Trigonometry
⏱ Tested in 1 exam question since 2019
Lesson 8 of 9
Trigonometry 2.8: Converting degrees, radians, degrees/minutes/seconds
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- Convert degrees to radians by dividing by 180 and attaching π (270° = 3π/2)
- Convert radians to degrees: coefficient × 180 if π is present, × 57.296° if not
- Convert between decimal degrees and DMS with the calculator's °'" (DMS) button
- Round DMS answers in base 60 — 30 seconds, not 5, is the round-up threshold
Most recent exam questions
- 2019 Paper 2 Q7(a)(ii) — trigonometric ratio in a right triangle; then convert to radians (calculator must be in…
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