The perimeter of a rectangle must be no greater than 62 meters. The width must be 12 meters. Find the greatest possible value for the length of the rectangle.
43 meters
50 meters
74 meters
O 19 meters

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Step-by-step explanti

Regular polygon area = n*side^2 / (4 * tan (180/n))
where "n" is number of sides
The formula is dependent on the side^2 term,
So, if we have an octagon that has sides 4 times as large, that means the area will be sixteen times larger.
side^2 = 4^2 = 16
So we multiply 25 cm^2 by 16 and we get
400 square centimeters.

Source:
http://www.1728.org/polygon.htm