পাতা:সূক্ষ্ম কালি কষা.pdf/১৪

il. A SURVEYOR'S HAND-BOOK. If not possible or if any remainder, get the pole by multiplying by 4 (i.e., multiplying by 40 and dividing by 10). (b) If the two dimensions are found to be of one or more chains and odd links, reduce them to links (one chain is equal to 100 links) and multiply ; take off the 5 right hand figures, the remaining number, if any, will be acres; multiply the taken off figures (whether you get acres or not) by 4 and take off the 5 right hand figures similarly, the remaining number (if any) will be rood ; multiply the figures taken off this time (whether you get rood or not) by 40 and take off the 5 right hand figures ; the remaining number will be pole. The taken off figures will be only a portion of a pole and may be shown by plac ing a decimal point behind the first figure. II. When uneasurement is made by a chain of 100 ft., multiply the dimensions in feet, and divide, if possible, by 43560, the result will be acres ; if not possible or if there is any remainder, divide, if possible, by 10890, the result will be rood ; if not possible or if any remainder, amultiply by 4 and divide by 1089, the result will be pole ; the reinainder reduced to decimal will be a portion of a polc. 3. To find out area in bighas &c. (a) When measurement is made by a chain of 100 ft, multiply the two dimensions in feet and divide, if possible, by 14400, the result will be bighas ; if not possible or if any remainder divide, if possible, by 720, the result will be kattas; if not possible, or if any remainder, divide by 45, the result will be chhattacks; the remainder reduced to decimals will be a portion of a chhattack. (b) When measurement is made by a chain of 5 kattas (30 ft.), areas may be found out by the same process as in (a ). (c) When measurement is made by a rod, 4 (or a few) cubits long, multiply the two dimensions in cubits and divide, if possibe, by 6400, the result will be bighas ; if not possible or if any remainder, divide by 320 and the result will be kattas; if not possible or if any remainder, divide by 20 and the result will be chhattacks; the remainder reduced to decimal will be a portion of chhattack. 4. To convert acres into standard bighas &c. Teduce the area to acres, multiply by 121 and divide by 40 and find out bighas, kattas and chhattacks. 5. To convert standard bighas into acres &c.