one plot is how many square feet
1,320 feet.
How many square feet in one
That depends on the size of the plot. "Plot" is not a unit; it's just a professional legalese word for what you and I would call a "piece" of land. The plot you need for building a house wouldn't need as many square feet in it as the plot you'd want for building an office tower.
You measure how many units will fit inside of the area. For example, if you own a plot of land and want to know the area in square feet, construct a lot of squares that are one foot square. Then put as many of those square as will fit into the plot without any overlapping or any gaps. Count the number of squares that fit into the plot.
how many gag is there in 396.5 square feet
Exactly 1.
One hectare is about 107,639.1 square feet
On square meter has 10.76 square feet.
One square meter equates to 10.76391 square feet.
43,650 square feet in one acre.
One square yard equals nine square feet.
There are about 10.8 (10.7639104) square feet in one square meter.