Question

Find the perimeter fo an irregular shape with four sides measuring $\frac{9}{2}cm,\frac{13}{4}cm,\frac{26}{5}cm$ and $\frac{33}{10}cm$

Answer 1

Perimeter $=\frac{9}{2}+\frac{13}{4}+\frac{26}{5}+\frac{33}{10}cm$

$=\frac{90+65+104+66}{20}=\frac{325}{20}=\frac{65}{4}cm$