 | John Radford Young - Astronomy - 1833 - 286 pages
...(JS-a)(JS-4)(JS — e); which formula furnishes the well known rule, given in all books on mensuration, for the area of a triangle when the three sides are given. (See Geom. p. 202.) These expressions for the area of a plane triangle are all adapted to logarithmic computation.... | |
 | 582 pages
...pupil teachei in the fifth year, by algebra and geometry, without the use of trigonometry, the rula for finding the area of a triangle when the three sides are given. 3. Point out exactly how far algebra corresponds to arithmetic, and at what point, not merely a peculiar... | |
 | Horatio Nelson Robinson - Navigation - 1858 - 356 pages
...a triangle whose base is in; feet and altitude 25J feet ? Ans. 231^ feet. PROBLEM III. Invettigate and give a rule for finding the area of a triangle when two sides and their included angle are given. Let ABC be the triangles, AB, BC the given sides, and... | |
 | Royal University of Ireland - Universities and colleges - 1859 - 490 pages
...acres, Irish plantation measure, to statute acres, roods, and perches. 1 4. State the ordinary formula for finding the area of a triangle when the three sides are given. DRAWING AND DESCRIPTIVE GEOMETRY, Examiner, JAMBS THOMSON, MA, 28*A September, 1858.— Afternoon.... | |
 | Harvard University - 1874 - 668 pages
...what follows? State without proving. Q. Show how to inscribe a circle in a triangle ; and then deduce a rule for finding the area of a triangle when the three sides of the triangle and the area of the inscribed circle are known. SOLID GEOMETRY. 1. Prove that, if a... | |
 | Education - 1876 - 692 pages
...of the side of a square to its diagonal. 4. Show how to inscribe a circle in a triangle, and deduce a rule for finding the area of a triangle when the three sides of the triangle and the area of the inscribed circle are known. 5. How is the area of a spherical triangle... | |
 | Samuel Mecutchen, George Mornton Sayre - Arithmetic - 1877 - 200 pages
...dividing the first two sides from the others; what is the area of the field? ANALYSIS. — Applying the rule for finding the area of a triangle when the three sides are given, we find the area of one of the triangles = y/60 x 30 x 20 x 10 = 1/360000 = 600 square rods ; the other... | |
 | Robert Fowler Leighton - 1877 - 372 pages
...what follows ? State without proving. 6. Show how to inscribe a circle in a triangle ; and then deduce a rule for finding the area of a triangle when the three sides of the triangle and the area of the inscribed circle are known. MODERN AND PHYSICAL GEOGRAPHY. 1. DEFINE... | |
 | Moffatt and Paige - 1879 - 506 pages
...AC= 17, all in chains. Also the angle at E is a right angle. Find the area. (32) Give the rules (1) For finding the area of a triangle when the three sides are known ; (2) For finding the diameter of a circle when the height of an arc and the chord of half the... | |
 | Pupil teachers - 1880 - 1486 pages
...perpendicularly from the level of the eaves. How many square feet of slating does it contain. 6.Give the rule@(i) for finding the area of a triangle when the three sides are known; (2) for finding the diameter of a circle when the height of an arc and the chord of half the... | |
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Applying the rule for finding the area of a triangle when the three sides are given... 
