268 GANITABARABANGRAHA 414xThere is at the foot of a hill a well of an equilaterally quadrilateral section measuring 9 Masters in (each of the) three dimensions. (From the top of the hill) there runs a water channel, (the section whereof is uniformly) 1 aigul broad at the bottom, 1 digula at (each of) the dug (side slopes), and 2 aigulas, in length (at th; top). As soon as tho water (fowing through tlbat channel) begins to fall into the well, the stream is broken of at the top. With the water (filling the whole of the ohannel) that well be. comes filled. What is the height of the hill and (what) the measure of the water १ Thus ends the section on accurate measurements in the cal culations relating to excavations, calculations Relating to Piles (of Bricks. Hereafter, in (this) chapter treating of operations relating to excavations , we will expound calculations relating to (brio) pile8. Here there is this convention (regarding the unit brick 482. The (unit) brick is 1 heat in length, half of that in breadth, and 4 sligula in thickness. With such (bricks abl) operations are to be carried out, The rule for arriving at the cubioal contents of a given excavation in a field and also at the number of bricks corresponding to the above cubical contents, 44. The area at the mouth (of the excavation) is multiplied by the depth ; this (resulting product) is divided by the oubis measure of the (unit) brick. The quotient so obtained is to be understood as the (cubical) measure of a (brick) pile; that ame (quotient) also happens to be the measure of the number of the brick8, Example8 # 28tration thereof. 45. There is a raised platform equilaterally quadrilatoral (in section) having a side measure of 8 lasta8 and a height of 39 44. The cubical measure of bhe briok pile here is evidently in terms of tho unit brio
