3x5x4 = 60 cubic feet
yes.
A square yard is 3ft by 3ft
12ft2
3ft*3ft*3ft9ft*3ft27ft cubed
3ft by 4ft
3x5x4 = 60 cubic feet
You cannot define a volume with only two linear dimensions.
5ft * 4ft * 3ft = 60 cubic ft = 1.699 cu metres
yes.
66 square feet
A square yard is 3ft by 3ft
If by space you mean volume, it is 60 this is simply the product of the height width and depth or 3x4x5
A right angle triangle
12ft2
It is: 4+5+3 = 12 feet
1.219 x 0.9144 = 1.11 square meters