3 Amy wants new skirting boards in her living room. The skirting boards will
go along the bottom of each wall
not go across the doorway
not go across the fireplace.
.
Amy has this sketch of her living room.
6.5 m
4.5 m
doorway
900 mm
fireplace
1.2m
Skirting boards come in lengths of 2.4m
The lengths of skirting board can be cut and joined.

skirting boards lenghts 11.31 m

Step-by-step 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

answer:

c. the third graph

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length