Revision notes
$\sin\theta = \frac{\text{opposite}}{\text{hypotenuse}}$, $\cos\theta = \frac{\text{adjacent}}{\text{hypotenuse}}$, $\tan\theta = \frac{\text{opposite}}{\text{adjacent}}$. A 3–4–5 triangle is right-angled.
Ratios in a right triangle
uncharted
Uncharted
Not practised yet · 2 questions