VTMO 2022 — Grade 5 — vtmo Question 8

Question 8

The pictured $I , T , O , L$ tetrominoes use $1 \,\mathrm{cm}^{2}$ cells. Use equal numbers of all four types to tile a square. What is the smallest square’s perimeter?

Question illustration

$16 \,\mathrm{cm}$
$32 \,\mathrm{cm}$
$48 \,\mathrm{cm}$
$64 \,\mathrm{cm}$
$100 \,\mathrm{cm}$