 | 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... | |
 | 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... | |
 | 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... | |
 | 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... | |
 | 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... | |
 | 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 Betz, Harrison Emmett Webb, Percey Franklyn Smith - Geometry, Plane - 1912 - 360 pages
...h 192 144 250 300 t 8 6 10 10 I 11 in IV P 12 16 30 2a+ 26 A 8 15 56 ab 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 b, and its altitude BE... | |
 | Walter Burton Ford, Earle Raymond Hedrick - Geometry, Modern - 1913 - 272 pages
...triangles. Find the area of each of these triangles. Ans. 15 sq. in. AREAS [IV, § 186 186. Theorem I. The area of a parallelogram is equal to the product of its base by its altitude. F_ GD G Given the parallelogram ABCD with b its base and a its altitude. To prove that the... | |
 | Walter Burton Ford, Charles Ammerman - Geometry, Solid - 1913 - 184 pages
...their bases; two rectangles that have equal bases are to each other as their altitudes. 186. Theorem I. The area of a parallelogram is equal to the product of its base by its altitude. 187. Corollary 1. (a) Two parallelograms are to each other as the products of their bases... | |
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The area of a parallelogram is equal to the product of its base and its height: A = bx h. 
