what is the size of an acre of land
Acre The acre is a unit of land area used in the imperial and US customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to ​1⁄640 of a square mile, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a hectare.
Hectare The hectare (/ˈhɛktɛər, -tɑːr/; SI symbol: ha) is an SI accepted metric system unit of area equal to 100 ares (10,000 m2) or 1 square hectometre (hm2) and primarily used in the measurement of land.[1] An acre is about 0.405 hectare and one hectare contains about 2.47 acres.
Measurement of land in Punjab 4. 160 Marlas or 8 Kanals 4839.99998 Sq.yds.say 4840 Sq.yds. (1 acre or 1 killa)
Olympic-size swimming pool 2,500 m3 (88,000 cu ft) in cubic units. About 2 acre-feet.