A polygon has vertices at (-1, 1 ), ( 1, 1 ), (1, -1 ) and (-1 -1 ) what is the perimeter in units of the polygon only 0-9 is allowed
. - and / is allowed

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Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not