It is used during daylight hours. The balloon is filled to such degree that its ascent rate is known. By measuring the time period between the start of the balloon and the moment it hides in the cloud can be determined the height of the cloud base.
imbrication lines (imâ³bro brÃ´Â´ika shÉn) , lÄ«nz.n pl. 1 the seams which are formed by overlapping layers of tissue in order to close a surgical. wound. 2 slight mesiodistal ridges in the cervical third of a. tooth
Perpendicular lines are two lines. that intersect to form right angles. The next three constructions involve constructing parallel. and perpendicular lines. Construction 5: Parallel through a Point Not on a Line. In this exercise we will construct a line parallel to a given line through a specific point not on. the line.