 | Great Britain. Board of Education - Education - 1912 - 1044 pages
...as a rectangle and having the same altitude has half the area of the rectangle, it follows that the area of a triangle is equal to half the product of the base and altitude. Hence the truth of the first proposition of Euclid's sixth book follows at once. Consider... | |
 | Henry Lewis Rietz, Arthur Robert Crathorne, Edson Homer Taylor - Algebra - 1915 - 302 pages
...the two fractions this rule becomes . 6. Area of a triangle. In arithmetic it was learned that the area of a triangle is equal to half the product of the base and altitude. In symbols i bh A = Tf where A is the area, b the base, and h the altitude. 7. Circumference... | |
 | Henry Lewis Rietz, Arthur Robert Crathorne, Edson Homer Taylor - Algebra - 1915 - 300 pages
...two fractions this rule becomes (Í С 6. Area of a triangle. In arithmetic it was learned that the area of a triangle is equal to half the product of the base and altitude. In symbols A = —, where A is the area, b the base, and h the altitude. 7. Circumference... | |
 | George Wentworth, David Eugene Smith, Joseph Clifton Brown - Mathematics - 1917 - 264 pages
...Triangle. From the illustrations given and the questions asked on page 169 it is easily seen that The area of a triangle is equal to half the product of the base and height. This may be expressed by the formula A = % bh. For example, what is the area of a triangle of base... | |
 | George Albert Wentworth, David Eugene Smith - Arithmetic - 1920 - 332 pages
...triangles with bases and heights as follows : Area of a Triangle. As you learned on the preceding page, The area of a triangle is equal to half the product of the base and height. For example, what is the area of a triangle of base 18 in. and height 7 in. ? J of 18 x 7 sq. in.=... | |
 | George Albert Wentworth, David Eugene Smith - Arithmetic - 1920 - 380 pages
...For example, if the base is 2.4 in. and the height 2 in., we have 2 x 2.4 sq. in. = 4.8 sq. in. The area of a triangle is equal to half the product of the base and the height. For example, if the base is 3J in. and the height 2 J in., we have ^ of 2J x 3^ sq. in.... | |
 | H. Irvine - Technology & Engineering - 1992 - 292 pages
...CIRCUMSCRIBED CIRCLE r IS RADIUS OF INSCRIBED CIRCLE FIG. 2.3 Areas of plane straight-sided figures. of a triangle is equal to half the product of the base and the height regardless of whether it is a right or oblique triangle. Also note that the area of a regular... | |
 | 228 pages
...equations for case (a) and subtracting for case (b) we have A ABC = J rectangle BCNM = | base x height. The area of a triangle is equal to half the product of the base and the height. 16. If we denote the sides of the triangle ABC by a, b and c and the angles by A, B and... | |
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The area of a triangle is equal to half the product of the base and height. 
