0.8×1×1.2×1.5×1.7×2×2.5×6 min⚡️6 min 58 sec5 min 34 sec4 min 39 sec3 min 43 sec3 min 17 sec2 min 47 sec2 min 13 secIntroduction to Estimating0.8×1×1.2×1.5×1.7×2×2.5×6 min⚡️6 min 58 sec5 min 34 sec4 min 39 sec3 min 43 sec3 min 17 sec2 min 47 sec2 min 13 secIntroduction to EstimatingYour user agent does not support the HTML5 Video element.