Answer:
skirting boards lenghts 11.31 m
Explanation:
1) find the area A=LxW
A= 6.5 x 4.5= 29.25 m2
2) Once you have found the area you subtract it from the doorway and fireplace
doorway 900 mm= 0.9
fireplace 1.2m
29.25-0.9- 1.2= 27.15 m2
3) then you find the perimeter
6.5+4.5+6.5+4.5= 22
22-0.9-1.2= 19.9
you divide the answer with the skirting board lenghts= 19.9: 2.4= 8.29
which is approximately 9m of skirting board