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288
QANITASİRASANGBAHA.
413-42}. There is at the foot of a bill a well of an equilaterally quadrilateral section measuring 9 hastas in each of the) three dimensions. (From the top of the hill) there runs a water obannel, (the section whereof is uniformly) 1 angula broad at the bottom, 1 angula at (each of the dug (side slopes), and 2 angulas in length (at the top). As soon as the water (flowing through that channel) begins to fall into the well, the stream is broken of at the top. With the water (filling the whole of the channel) that well becomes filled. What is the height of the hill and (what) the measure of the water !
Thus ends the section on accurate measurements in the caloulations relating to exoavations.
Calculations Relating to Piles (of Brioks). Hereafter, in (this) chapter treating of operations relating to excavations, we will expound calonlations relating to (briok) piles. Here there is this convention (regarding the unit brick).
43%. The (unit) briok is 1 hasta in length, half of that in breadth, and 4 angulas in thickness. With such bricks all) operations are to be carried out.
The rule for arriving at the oubioal contents of a given excavation in a field and also at the number of brioks corresponding to the above oubioal oontents.
44. The area at the mouth of the excavation) is multiplied by the depth; this (resulting product) is divided by the oubio measure of the (unit) briok. The quotient so obtained is to be understood as the (oubioal) measure of a (brick) pile; that same (quotient) also happens to be the measure of the number of the bricks.
Examples in illustration thereof. 464. There is a raised platform equilaterally quadrilateral (in sootion) having a side measure of 8 hastas and a height of 9
14. The oubloul mossure of the briok pile bore is evidently in terms of the unit brick
