Find the area and perimeter of a regular pentagon with a side length of 8cm, and the apothem of 5cm.

Perimeter =

Area =
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Which expression converts 45 degree to radians

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)