The interior angle of a regular polygon is 162 degrees. how many sides does the polygon have. Show the working

20 sides

Step-by-step explanation:

Interior angle + exterior angle= 180

So,

let the unknown exterior angle be x

Now,

360 / size  of    the exterior    angle = number of sides of the polygon

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the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.