it is also a short form of "shut your mouth up". it was the fourth and final single from the group's second album, "the writing's on the wall". the length of something is the distance between two ends of the thing. 1 "billboard" hot dance club play track "let the sun shine". after 1769, ships were able to use the river. the first 25 triangular numbers are: 0, 1, 3, 6, 10, 15, 21, 28, 36, 45, 55, 66, 78, 91, 105, 120, 136, 153, 171, 190, 210, 231, 253, 276, 300, 325, 351, and so on. it was likely a four-legged herbivore. 