Area of Triangles and Parallelograms (Leaving Cert Mathematics): Flashcards

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

90° (right angle)

No effect - area remains the same

Quadrilateral with opposite sides parallel and equal

Two congruent triangles

$\text{base} \times \text{height}$

A parallelogram consists of 2 identical triangles

Shortest distance between parallel sides at 90°

Squared units (cm², m², etc.)

Any side can be the base