Question

Avneet buys $9$ square paving slabs, each with a side of $\frac{1}{2}m$. He lays them in the form of a square.
What is the perimeter of his arrangement? (see figure)

Answer 1

i) Side length = $\frac{1}{2}m=0.5m$

This is square with $3$ slabs on each side.

side length of this square = $3\times \frac{1}{2}=1.5m$

Perimeter = $4\times 1.5=6m$.

ii) Perimeter = $\frac{1}{2}+1+1+\frac{1}{2}+1+1+\frac{1}{2}+1+1+\frac{1}{2}+1+1$

(By traversing in clock wise direction from edge A)

$10m$