| Charles Vyse - 1785 - 325 sider
...RULE, 3. From Half the Burn of the three Sides fubtnuft each Side feverally ; multiply the Half Sura **and the three Remainders continually together, and the Square Root of the** laft ProducT. will be the Area 6f the Triangle, that is, * • Tc— 2. *=Half the Sum of the Sides.... | |
| Charles Vyse - 1806 - 320 sider
...the Area. RULE. 3. From Half the Sum of the three Sides subtract each Side severally ; multiply the **Half Sum and the three Remainders continually together, and the Square Root of the** last Produdl will be the Area of the Triangle, that is, ^++l= j = Half the Sum of the Sides'. 2 Then... | |
| Samuel Webber - 1808
...sides together, and take half the sum ; from the halt. sum subtract each side separately ; multiply the **half sum and the three remainders continually together ; and the square root of the** last product will be the area of the triangle. • A triangle is half a parallelogram of the same base... | |
| Peter Nicholson - 1809
...sum of the three sides, subtract each side severally; multiply the half sum and the three remainders **together, and the square root of the product will be the area** required. EXAMPLE I. Rcquireth the area of a triangle ABC, whose three sides AB, BC, and CA, are respectively... | |
| John Gummere - 1817 - 206 sider
...are given. RULE. From half the sum of the three sides subtract each sifle severally ; multiply the **half sum and the three remainders continually together, and the square root of the** last product will be the area. * » DEMONSTRATION. Let ABC, Fig. 69, be the triangle. Bisect any two... | |
| Anthony Nesbit - 1824 - 434 sider
...which are given. RULE. From half the sum of the three sides subtract each side severally ; multiply the **half sum and the three remainders continually together; and the square root of the** last product will be the area of the triangle. Jvofe t. If a triangle be accurately laid down, from... | |
| John Nicholson - 1825 - 795 sider
...sides 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 the square root of the** last product will be the area of the triangle. Ex. Required the area of the triangle whose base is... | |
| Peter Nicholson - 1825 - 372 sider
...of the three sides, subtract each side severally ¡ multiply the half sum and the three remainders **together, and the square root of the product will be the area** required. Едг. Requireth the area of a triangle ABC, whose three »ides AB BC, and CA, are respectively... | |
| Zadock Thompson - 1826 - 164 sider
...these together, and tuke half the sum ; from the half sum subtract each side separately ; multiply the **half sum and the three remainders continually together, and the square root of the** last product will be the area of the triangle. Examples. 1. How many square feet in a triangle whose... | |
| John Bonnycastle - 1829 - 252 sider
...Whence CD= gl and the area £ AB X CD = $ -/(a + bs — c2) X (c2— a— 56 MENSURATION 2. Multiply the **half sum and the three remainders continually together,...and the square root of the product will be the area** required. EXAMPLES. 1. Required the area of the triangle ABC, whose three sides BC, CA, and AB are... | |
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