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The answer depends on the units of measurement used for the numbers in the question: feet, metres, centimetres, miles, etc. Assuming they are measurements in millimetre, you will need 99 slabs. However, this assumes that the area is well behaved and also that you use most of the offcuts to fill up some of the space as a mosaic. If, for example, it is a path which is 0.230 mm wide then you may need 194 slabs.

Q: How many paving slabs will i need for 20 sq meters if each slab is 450 x 450?

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A square slab measuring 0.6 metres all round has an area of 0.36 square metres. This means that to cover an area of 24 square metres you will need 66 slabs and 2/3 of a slab. Covering the area may be problematic if 1/3 of a slab and 2/3 of a slab become involved, of lesser fractions, depending on the exact length and width which gave the area of 24 - and if there is a pattern to maintain.

Each foot is 30.48 cm., or 0.3048 meters.

There are 0.00125 lengths of 800 metres in each linear metre.

Each kilometer is equal to 1000 meters. Kilo means 1000.Each kilometer is equal to 1000 meters. Kilo means 1000.Each kilometer is equal to 1000 meters. Kilo means 1000.Each kilometer is equal to 1000 meters. Kilo means 1000.

40 foot a year

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Depends on the linear dimensions of both the slabs and the ground.

Joe needs 460 paving slabs to surrond the pond.

220 should do it.

45 required actually its 75 required (15 * 5)

first lets convert m to mm.we know, 1 m=1000 mm. 5 m =5000 mm and 8m=8000mm. Now, no.of paving slab = area of flags /area of slab . =5000 X8000/450 x 450. =197.5 = 197 slabs.

Area of slab = 0.6 m * 0.6 m = 0.36 sq metres Minimum number of slabs required = 9/0.36 = 25. This minimum number is based on the assumption that the area to be covered is a reasonable shape so that only a few slabs need cutting and that all the resultant offcuts are used - even if part of the area looks like crazy paving!

You would need a total of 160

The answer will depend on the size of the patio slabs.

Each slab is .5 x .5 = .25 square m. Yard is 8x 5 = 40 square m so you need 40/.25 = 160 slabs

53 and 1/3 paving slabs exactly.

305.56

23.41 sq m