Question

Represent the coloured region in decimals, if each grid represents 1 unit.

Answer 1

Each grid represents 1 unit
In total there are 17 squares(1 grid and 7 squares) that are coloured.
Portion represented by each coloured square = 1 $÷$ 10
= 0.1
Coloured region = 0.1 $\times$ 17
= 1.7 units.