Right-Angled Triangles (AQA A-Level Mathematics): Flashcards

Exactly 90 degrees

Hypotenuse

$c^2 = a^2 + b^2$

$\frac{\text{Opposite}}{\text{Hypotenuse}}$

$\frac{\text{Adjacent}}{\text{Hypotenuse}}$

$\frac{\text{Opposite}}{\text{Adjacent}}$

$\frac{1}{2} \times \text{base} \times \text{height}$

Two sides forming the right angle (not hypotenuse)

$\frac{1}{2}$

$\frac{\sqrt{3}}{2}$