âThe perimeter of the inner polygon is shorter than the circumference of the circle, while that of the outer polygon is longer.â âZenodorus studied the area of a figure with a fixed perimeter and the volume of a solid figure with fixed surface.â
Social Security generally defines substantial earnings as a certain dollar amount. In 2017, generally $1,170.00 earnings per month is substantial for non-blind workers and $1,930.00 is substantial work for the blind. These amounts refer to your gross earnings if you are an employee and your net profit if you are self-employed.
To give you an idea of what you might receive, for 2015, the average SSDI benefit amount is $1,165 per month, but you can receive anywhere up to $2,663. If you're interested in how Social Security calculates your AIME and PIA, here's how.o give you an idea of what you might receive, for 2015, the average SSDI benefit amount is $1,165 per month, but you can receive anywhere up to $2,663. If you're interested in how Social Security calculates your AIME and PIA, here's how.