math mode - triple \approx and triple \approx with a straight middle line - TeX
Line - Black Line Background - CleanPNG / KissPNGAproximado simbolo - icono de glifo de símbolos matemáticos. igual, no es y aproapproximately equal symbol. sign. icon gray background Векторный объект Stock AdDownload Open - Icon Clipart (#1597973) - PinClipart