Books Books The area of a parallelogram is equal to the product of its base and its height: A = bx h. The New Practical Builder and Workman's Companion, Containing a Full Display ... - Page 51
by Peter Nicholson - 1823 - 596 pages ## Elements of Geometry

Adrien Marie Legendre - Geometry - 1819 - 208 pages
...of Us base by its altitude. Demonstration. The parallelogram ABCD (fig. 97) is equip- Fig. 97. alent to the rectangle ABEF, which has the same base AB and the same altitude BE (167) : but this last has for its measure JlB x BE (173) ; therefore. AB x BB is equal to the area... ## Elements of Geometry and Trigonometry: With Notes

Adrien Marie Legendre - Geometry - 1822 - 367 pages
...to the product of Its base by its altitude. For the parallelogram ABCD is equivalent (I. III. Cor.) to the rectangle ABEF, which has the same base AB, and the same altitude BE: but this rectangle (4. III. Schol.) is measured by ABx BE; therefore ABx BE is equal to the area... ## Elements of Geometry

Adrien Marie Legendre - Geometry - 1825 - 224 pages
...of its base by its altitude. Demonstration. The parallelogram ABCD (Jig. 97) is equiva-Fig. 37. lent to the rectangle ABEF, which has the same base AB and the same altitude BE (167); but this last has for its measure AB x BE (173) ; therefore AB x BE is equal to the area... ## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1836 - 359 pages
...equal to the product of its bast by its altitude. For, the parallelogram ABCD is equivalent PJD EC to the rectangle ABEF, which has the same base AB, and the same altitude BE (Prop. I. Cor.) : but this rectangle is measured by AB x BE (Prop. IV. Sch.) ; therefore, AB x BE... ## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1838 - 386 pages
...equal to the product of its base by its altitude. For, the parallelogram ABCD is equivalent jF D EC o the rectangle ABEF, which has the same base AB, and the same altitude BE (Prop. I. Cor.) : but this rectangle is measured by AB xBE (Prop. IV. Sch.); therefore, AB x BE... ## Elements of Geometry: On the Basis of Dr. Brewster's Legendre : to which is ...

James Bates Thomson - Geometry - 1844 - 237 pages
...to the product of its base AB by its altitude BE. For the parallelogram ABCD is equivI* D EC alent to the rectangle ABEF, which has ...... the same base AB, and the same altitude BE; (1.4. Cor.;) but this rectangle is measured by AB x BE ; (4. 4. -^ Sch. ;) therefore AB x BE is... ## Elements of Plane Geometry: For the Use of Schools

Nicholas Tillinghast - Geometry, Plane - 1844 - 96 pages
...parallelogram is equivalent to a rectangle which has an equal base and equal altitude. Cor. 2. Hence the area of a parallelogram is equal to the product of its base by its altitude (Prop. 1).* Cor. 3. Hence parallelograms of equal altitudes, are in proportion... ## Elements of plane (solid) geometry (Higher geometry) and trigonometry (and ...

Nathan Scholfield - 1845 - 896 pages
...is equal to the product of its base by its altitude. FD EC For, the parallelogram ABCD is equivalent to the rectangle ABEF, which has the same base AB, and the same altitude «K (Prop. 111. Cor.) : but this rectangle is measured by ABxBE (Prop. VI. Sch.) ; therefore, ABXBB... ## Elements of Geometry and Trigonometry Translated from the French of A.M ...

Charles Davies - Trigonometry - 1849 - 384 pages
...equal to the product of its base by its altitude. For, the parallelogram ABCD is equivalent ff ~fi EC to the rectangle ABEF, which has the same base AB, and the same altitude BE (Prop. I. Cor.): but this rectangle is measured by AB x BE (Prop. IV. Sch.); therefore, AB x BE... 