0 votes 0 votes Assume that the surface roughness profile is triangular as shown schematically in the figure. If the peak to valley height is $20 \mu m$, the central line average surface roughness $R_{a}$ (in $\mu m$) is $5$ $6.67$ $10$ $20$ Materials, Manufacturing and Industrial Engineering gateme-2017-set1 materials-manufacturing-and-industrial-engineering + – Arjun asked Feb 26, 2017 • recategorized Mar 5, 2021 by Lakshman Bhaiya ♦Arjun 28.5k points answer See all 0 reply