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The areas of two rectangles having equal altitudes are to each other as their bases.
Plane and Solid Geometry - Page 192
by Isaac Newton Failor - 1906 - 418 pages

## Elements of Geometry and Trigonometry

Adrien Marie Legendre - Geometry - 1852 - 436 pages
...proportion cannot be less than AE; therefore, being neither greater nor less, it is equal to AE. Hence, any two rectangles having equal altitudes, are to each other as their bases. PROPOSITION IV. THEOEEM. Any two rectangles are to each other as the products of their bases and altitudes....

## Elements of Geometry and Trigonometry from the Works of A.M. Legendre ...

Charles Davies - Geometry - 1854 - 436 pages
...proportion cannot be less than AE; therefore, being neither greater nor less, it is equal to AE. Hence, any two rectangles having equal altitudes, are to each other as their bases. PROPOSITION IV. THEOREM. Any two rectangles are to each other as the products of their bases and altitudes....

## Elements of Geometry and Trigonometry from the Works of A. M. Legendre ...

Adrien Marie Legendre, Charles Davies - Geometry - 1857 - 442 pages
...proportion cannot be less than AE; therefore, being neither greater nor less, it is equal to AE. Hence, any two rectangles having equal altitudes, are to each other as their bases. PROPOSITION IV. THEOREM. Any two rectangles are to each other as the products of the'r bases and altitudes....

## Elements of Plane and Spherical Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1861 - 638 pages
...All triangles which have equal bases and altitudes are equivalent. PROPOSITION III. — THEOREM. 222. Two rectangles having equal altitudes are to each other as their bases. Let ABCD, AEFD be DF c two rectangles having the common altitude AD ; they are to each other as their...

## Elements of Geometry and Trigonometry: With Practical Applications

Benjamin Greenleaf - Geometry - 1862 - 518 pages
...All triangles which have equal bases and altitudes are equivalent. PROPOSITION III. — THEOREM. 222. Two rectangles having equal altitudes are to each other as their bases. LetABCD, AEFD be DF c two rectangles having the common altitude AD ; they arc to each other as their...

## Elements of Geometry: With Practical Applications to Mensuration

Benjamin Greenleaf - Geometry - 1863 - 504 pages
...All triangles which have equal bases and altitudes are equivalent. PROPOSITION III. — THEOREM. 222. Two rectangles having equal altitudes are to each other as their bases. Let ABCD, AEFD be D * c two rectangles having the common altitude AD ; they are to each other as their...

## Elements of Geometry: With Practical Applications to Mensuration

Benjamin Greenleaf - Geometry - 1868 - 340 pages
...triangles which have equal bases and altitudes are equivalent. V PROPOSITION III. — THEOREM. 222. Two rectangles having equal altitudes are to each other as their bases. Let ABCD, AEFD be DFC two rectangles having the common altitude AD ; tbcy are to each other as their...

## Elements of Geometry and Trigonometry: With Applications in Mensuration

Charles Davies - Geometry - 1870 - 392 pages
...squares on equal lines are equal. For a square is but a rectangle having its sides equal. THEOREM V. Two rectangles having equal altitudes are to each other as their bases. Let AEFD&nAEBCF be two JD rectangles having the common altitude AD ; then will they be to each other...