Measuring Area (Grade 10 NSC Matric Mathematical Literacy): Flashcards

Size of surface or space inside boundary of 2D shape

Square units: mm², cm², m², km²

$\text{Length} \times \text{Width}$

$\text{Side}^2$ or $\text{Side} \times \text{Side}$

$\frac{1}{2} \times \text{Base} \times \text{Perp. Height}$

$\pi \times \text{radius}^2$

Straight line at 90° angle to another line

$\text{radius} = \text{diameter} \div 2$

To estimate area of irregular shapes

Break into simpler shapes, calculate each, add together