| Isaac Newton Failor - Geometry - 1906 - 431 pages
...base of a rectangle is 17 in. and its altitude is 27 in. Compute its area. PROPOSITION IV. THEOREM 401 The area of a parallelogram is equal to the product of its base and altitude. E —4 HYPOTHESIS. ABCD is a £7, b its base, and a its altitude. CONCLUSION. The... | |
| Isaac Newton Failor - Geometry - 1906 - 440 pages
...base of a rectangle is 17 in. and its altitude is 27 in. Compute its area. PROPOSITION IV. THEOREM 401 The area of a parallelogram is equal to the product of its base and altitude. E ... HYPOTHESIS. ABCD 13 a O, & its base, and a its altitude. CONCLUSION. The area... | |
| William James Milne - Arithmetic - 1906 - 302 pages
...rectangle having the same base and altitude ? How, then, may the area of a parallelogram be found ? The area of a parallelogram is equal to the product of its base and altitude, expressed in like units. WRITTEN EXERCISES 216. 1. Find the area of each of these... | |
| Edward Rutledge Robbins - Geometry - 1907 - 428 pages
...QED 372. THEOREM. The area of a square is equal to the square of its side. (See 371.) 373. THEOREM. The area of a parallelogram is equal to the product of its base by its altitude. Given : O ABCD whose base is b and altitude, h. To Prove : Area of ABCD = b , h. Proof: From... | |
| Bruce Mervellon Watson, Charles Edward White - Arithmetic - 1907 - 272 pages
...into a rectangle of the same base and altitude, how may we find the area of a parallelogram ? 249. The area of a parallelogram is equal to the product of its base and altitude. 250. Oral The following examples relate to parallelograms. Fill in the missing number... | |
| William James Milne - Arithmetic - 1907 - 616 pages
...rectangle having the same base and altitude ? How, then, may the area of a parallelogram be found ? The area of a parallelogram is equal to the product of its base and altitude, expressed in like units. WRITTEN EXERCISES 232. 1. Find the area of each of these... | |
| John William McClymonds, David Rhys Jones - Arithmetic - 1907 - 348 pages
...the triangles. Therefore the number of square feet in the lot may be found by multiplying 120 by 40. The area of a parallelogram is equal to the product of its base and altitude. 5. Cut several parallelograms out of paper, and show by the method of Prob. 3 that... | |
| William Betz, Harrison Emmett Webb - Geometry, Modern - 1912 - 368 pages
...192 144 250 300 t 8 6 10 10 I II III IV P 12 16 30 2a + 26 A 8 15 56 a6 PROPOSITION I. THEOREM 328. The area of a parallelogram is equal to the product of its base and altitude. EC Given the parallelogram ABCD, with its base AB equal to 6, and its altitude BE... | |
| Edith Long, William Charles Brenke - Algebra - 1913 - 300 pages
...rectangle is formed on b and h as sides and with the same area as the parallelogram ABCD. Corollary 1. The area of a parallelogram is equal to the product of its base by its altitude. That is, a = bh. Corollary 2. All parallelograms having equal bases and altitudes are equal... | |
| George Albert Wentworth, David Eugene Smith - Geometry - 1913 - 496 pages
...wide a road is cut 4 rd. wide. How many acres are cut off for the road? PROPOSITION IV. THEOREM 322. The area of a parallelogram is equal to the product of its base by its altitude. A b BA b B Given the parallelogram ABCD, with base b and altitude a. To prove that the area... | |
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