24/07/2026
Quick Memory Trick
SOH → Sin = Opposite / Hypotenuse
CAH → Cos = Adjacent / Hypotenuse
TOA → Tan = Opposite / Adjacent
For SEBA Class 10, remember:
Opposite = Perpendicular (P)
Adjacent = Base (B)
Hypotenuse = Hypotenuse (H)
So you can also write:
Sin θ = P/H
Cos θ = B/H
Tan θ = P/B