 | John Groesbeck - 1868 - 350 σελίδες
...length by the breadth. To find the area of a triangle. Multiply the base by one-half the altitude. Or, From half the sum of the three sides subtract each side separately ; multiply together the half sum and the three remainders, and extract the square root of the product. To find... | |
 | Isaac Todhunter - 1869 - 312 σελίδες
...the quotient is the height. 152. The three sides of a triangle being given, to find the area. RULE. From half the sum of the three sides subtract each...remainders together : the square root of the product witt be the area. 153. Examples : (1) The sides of a triangle are 2 feet 2 inches, 2 feet 4 inches,... | |
 | Sir Rowland Macdonald Stephenson - 1869 - 446 σελίδες
...sides only are given : add the three sides all together, and take half the sum ; from the half sum subtract each side separately; multiply the half sum and the three remainders continually together ; and take the square root of the last product for the area of the triangle. 1.... | |
 | Alfred Hiley - 1871 - 184 σελίδες
...the height, and divide the product by 2. (2) To find the area, when the three sides are given. Prom 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 is the area. THE TRIANGLE. Kg. 3. sion are given. — (a) Divide... | |
 | John Groesbeck - 1872 - 374 σελίδες
...length by the breadth. To find the area of a triangle. Multiply the base by one-half the altitude. Or, From half the sum of the three sides subtract each side separately ; multiply together the half sum and the three remainders, and extract the tquare root of the product. To find... | |
 | Daniel W. Fish - 1874 - 526 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...together; the square root of the product is the area. 3. Find the area of a triangle whose sides are 25, 36, and 49 in. 4. How many acres in a field in the... | |
 | Daniel W. Fish - 1874 - 302 σελίδες
...equal sides 15 feet 1 RULE. — From half the sum of the three sides, subtract each side teparately ; multiply the half -sum and the three remainders together; the square root of the product is the area. 3. Find the area of a triangle whose sides are 25, 36, and 49 in. 4. How many acres in a field in the... | |
 | Daniel W. Fish - 1874 - 298 σελίδες
...area of an isosceles triangle whose base is 20 ft., and each of its equal sides 15 feet ? EULE. — From half the sum of the three sides, subtract each side separately ; multiply the half -turn and the three remainders together; the square root of the product is the area. 3. Find the area... | |
 | Daniel W. Fish - 1874 - 300 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-surn ami the three remainders together; the square root of the product is the area. 3. Find the... | |
 | Daniel W. Fish - 1874 - 540 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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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. 
