45,000 millimeters is 147.64 feet (147 feet and 7.65 inches.).
450 / 304.8 = 1.476 feet (approx)
or >
1 foot 5 23/32 inches (approx)
4,500 millimeters is 14 feet 9.2 inches.
4500 mm = 4500/25.4 inches
450 millimeters is about 1.5 feet.
14.764'
0.45M
45cm
450 mm = 45 cm
The answer will vary slightly depending on assumptions: will the slabs have a space between them, and will you be cutting the slabs to fill fractions. 21 feet is equal to 14.2 of the 450 mm slabs. 19 feet is equal to 12.9 of the slabs. To complete the rectangular area, 14.2 x 12.9 = 183 slabs.
It depends on the shape of the 40m2. If it is 1m x 40m then, despite the area being 40m2, there is not a single 450mm x 450mm in it. The shape is simply not wide enough. But if you're allowed to cut up the slabs to make them fit, then you need 198 of them in order to cover 40 m2 of area.
You need only 8 and half sheets of slab.
1 cm = 10 mm therefore the shelf is 450mm 450mm/9mm = 50 books
20 ft= 6096 mm (6096 * 6096) / (450 * 450) = 183.512178 184 slabs
450mm x 300mm 45cm x30cm 1350cm
450mm*450mm = 0.2025 sq metres. Area to be covered = 1 square metre So number of flags required = 1/0.2025 = 4.9, or 5. However, 5 will leave the area looking like a mosaic.
600mm is 0.6m, and 450mm is 0.45m, so one flag is 0.27 sq metre. Therefore 4 flags to the square metre
450mm !