The question is Gibberish.
1/2 acre is 21,780 square feet.
There are 5,280 feet in a mile, so half a mile is half that, or 2,640 feet.
one and a half feet
A mile has 5280 feet. That means it's less than half a mile. Half a mile is 2,640 feet, so it's around 40% 2,000 feet is 0.38 miles.
A half-kilometer is 1640.42 feet
One and one half feet
A yard is three feet, so half a yard would be one and a half feet.
As per my Knowledge, 1 kadi is equal to around 48 Square feet.
Five and a half miles is 29,040 feet.
There are 42 inches in 3 and a half feet.
There are 2.5 yards in 7 and a half feet.
One and a half what