Question: point Plot

I am trying to point plot R:= .8*theta+.87 where theta starts from 160 degrees and goes till 330 degrees. I want to see points only at 160 degrees, 170 degrees, 180 degrees and so on till 330 degrees . It should be a polar plot. If I use plot( .8*theta+.87, theta=(160/180)*Pi..(330/180)*Pi,coords=polar), I get a continuous line. I just need points. thanks
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