 | Samuel Mecutchen - 1880 - 270 σελίδες
...required number of decimal places. RULES IN MENSURATI0N. SURFACES. To find the area of a triangle. FROM half the sum of the three sides, subtract each side...multiply the half sum and the three remainders together, and the square root of the product will be the area required. NOTE.—When the base and altitude are... | |
 | Samuel Mecutchen - 1880 - 288 σελίδες
...and, when any period is not comRulesin Mensuration. SURFACES. To find the area of a triangle. .From half the sum of the three sides, subtract each side...multiply the half sum and the three remainders together, and the square root of the product will be the area required. Note.—When the base and altitude are... | |
 | Samuel Mecutchen - 1880 - 292 σελίδες
...required number of decimal places. RULES IN MENSURATION. SURFACES. To find the area of a triangle. FROM half the sum of the three sides, subtract each side...multiply the half sum and the three remainders together, and the square root of the product will be the area required. NOTE.—When the base and altitude are... | |
 | Samuel Mecutchen - 1880 - 262 σελίδες
...required number of decimal places. RULES IN MENSURATION. SURFACES. To find the area of a triangle. half the sum of the three sides, subtract each side...multiply the half sum and the three remainders together, and the square root of the product will be the area required. NOTE.—When the base and altitude are... | |
 | Edward Olney - 1880 - 236 σελίδες
...and A'. Then the two make Make another just 446. Note. — If the three sides only are given, from half the sum of the three sides subtract each side separately, multiply the half sum and these remainders together, and extract the square root of the product. The pupil cannot see why this... | |
 | Horatio Nelson Robinson - 1875 - 472 σελίδες
...isosceles triangle whose base is 20 ft., each of its equal sides 15 ft. ? Ans. 111.85 sq. ft. Rule. From half the sum of the three sides subtract each side separately ; multiply the half-sum and the three remainders together ; the square root of the product is the area. 3. How many... | |
 | George Bruce Halsted - 1881 - 258 σελίδες
...meters. Ans. 36, Given the three sides of a triangle, to find the area. Eule ; From half the surtí of the three sides subtract each side separately ;...remainders together : the square root of the product will be the area. Formula : A — Vs (s — a) (s — 6) (s — c)< Proof: THE MEASUREMENT OF PLANE... | |
 | George Bruce Halsted - 1881 - 266 σελίδες
...113-581 square meters. Ans. j >> 36. Given the three sides of a triangle, to find the area. Eule: From half the sum of the three sides subtract each side...separately; multiply the half sum, and the three remainders toy ether: the square root of the product will lie the area. Pormnla : A = Vs (,9 — a) (s — b)... | |
 | Montagu H. Foster - 1881 - 182 σελίδες
...Parallelogram. The area equals the base multiplied by the perpendicular altitude. 3. Triaiigle. From half the sum of the three sides subtract each side separately, multiply the half sum by these three remainders, and extract the square root of the product. 4. Trapezium. The area equals... | |
 | Daniel W. Fish - 1881 - 542 σελίδες
...area of an isosceles triangle whose base is 20 ft., and each of its equal sides 15 feet? RULE.—From half the sum of the three sides, subtract each side separately; multiply the half-sum and the three remainders together ; the square root of the product is the area. 3. Find the... | |
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half the sum of the three sides subtract each side separately. Multiply the half sum and the three remainders together ; the square root of the product is the area. 1. Find the area of a triangle whose sides are 15, 20, 25 feet. 
