Why is easy bruising so common in older adults? Most bruises form when small blood vessels (capillaries) near the skin's surface are broken by the impact of a blow or injury â often on the arms or legs. When this happens, blood leaks out of the vessels and initially appears as a black-and-blue mark.
There are 43,560 square feet in an acre. An acre is a measure of land area in Imperial units, and a square foot is the area enclosed by a square with each side being 1 foot long.
How many feet by how many feet equals 1 acre? 43559.45382 ft = 1 acre. square root of 43559.45832 sq ft = 208.73 ft-The U.S. acre is actually an even 43,560 (66x660 or 1/8 mi. by 1/80th).The odd decimal comes from imp â¦ roper use of international feet in a U.S. survey acre. An international acre is 43,560 international feet (exactly 304.8mm each).ow many feet by how many feet equals 1 acre? 43559.45382 ft = 1 acre. square root of 43559.45832 sq ft = 208.73 ft-The U.S. acre is actually an even 43,560 (66x660 or 1/8 mi. by 1/80th).