 | James Morgan Rawlins - Arithmetic - 1899 - 458 pages
...Scalene Triangle,—no two sides equal. Draw a triangle of each kind. 4. We have learned (page 164) that the area of a rectangle is the product of the length and breadth (base and altitude). Every triangle is regarded as one-half of a rectangle having the same... | |
 | Education - 1912 - 942 pages
...own way, have advocated a geometry that was more concrete, practical, inventional,5 and empirical." My thesis is that geometry teaching in order to reach...learn in farm accounts or commercial activities that JIles, My Clan In Geometry. "Hopkins. Plane Geometry. *Sander«. Plane Geometry. ShutU, Plane Geometry.... | |
 | Nels Johann Lennes, Frances Jenkins - Arithmetic - 1920 - 568 pages
...larger number as the multiplier, see page 11, book two. When the idea is once developed and stated that "the area of a rectangle is the product of the length and the width " it should be used consistently, making sure in each case that the dimensions are given... | |
 | Stephen Clayton Sumner - Mathematics - 1922 - 266 pages
...figures. 7. What do you understand by deductive reasoning ? 8. You have learned in your arithmetic that the area of a rectangle is the product of the length and the width. How did the Egyptians make use of this rule? Has it any value in modern outdoor sports?... | |
 | Paul Ligda - Algebra - 1925 - 284 pages
...exceeds Sam's age by 4 years. 3. Three times a certain number is equal to the number increased by 20. 4. The area of a rectangle is the product of the length by the width. 5. The area of a triangle is one half of the base times the altitude. 6. The quotient of two... | |
 | Herbert Edwin Hawkes, William Arthur Luby, Frank Charles Touton - Algebra - 1926 - 456 pages
...inches, 6 = 5 inches, and с = 12 inches ; if a = 2 feet, 6 = 5 feet, and с = 3j feet. 10. The fact that the area of a rectangle is the product of the length and width is expressed by A = lw, where these dimensions are expressed in the same unit of measure.... | |
 | Mathematics - 1926 - 230 pages
...40. — 6 +(—4)— 60.— 3 + 0 — . EVALUATING FORMULAS Given the formula A— lie, which means that the area of a rectangle is the product of the length and width, complete each of the following: 1. If 1—4 and tc— 3, I find the product of 4 and and... | |
 | David Eugene Smith, William David Reeve - Mathematics - 1927 - 428 pages
...let us take the formula just mentioned, A = lw. What does this formula tell us? PUPIL. It tells us that the area of a rectangle is the product of the length and width. TEACHER. Does it mean that you multiply one line by another? PUPIL. No, it means that the... | |
 | William Leonard Schaaf - Mathematics - 1928 - 176 pages
...= ird; d— 10. V = Iwh; w = b. Finding values from formulas. Given the formula A = Iw, which means that the area of a rectangle is the product of the length and the width, complete the following statements : 1. If / = 4 and w = 3, I find the product of 4 and... | |
| |
... that the area of a rectangle is the product of the length by the altitude in terms of a unit square. 