The Big Red (11-12, 3-3) opened the game with a 12-2 run. Dartmouth (6-14, 2-4) trimmed the deficit to 12-7, but a 3-pointer by Cressler sparked a 17-5 spurt.
Cornell stretched its lead to 24, 41-17, on Peck's layup with 2:15 left in the first half and led by at least 18 points after halftime.
The Big Red made 17 of 27 shots in the opening frame while Dartmouth made as many shots (7 of 28) as turnovers.
Tyler Melville's 12 points led the Big Green.