The answer depends on the units used for 8x4.
One 8 metre x 4 metre sheet = 32 square metres.
32
810
8-ft x 4-ft = 32 square feet
No.No.No.No.
32
1 square foot = 144 square inches100 square feet = 14,400 square inches8-in x 4-in = 32 square inches14,400/32 = 450 pavers
2.973 sq. meters 1 foot = 30.48 cm 1 sq. foot = .0929 sq. meter 8 x 4 = 32 sq.ft. 32 sq ft = 2.973 sq. meter
450 bricks.
The name "8x4" comes from the 32 characters of the active ingredient, Hexachloridhydroxydiphenylmethan.
Don't see any reason why the answer should not be 240 square feet!
First you need to tell us what the units of your 8x4 blocks are. For example, feet, or inches.