...to twice the product of the given side by the projection of the median upon that side. BOOK IV. 383. The area of a rectangle is equal to the product of its base by its altitude. 385. The area of a parallelogram is equal to the product of its base by its altitude....

...be contained by AB and BC, or, as it is sometimes expressed, it is the rectangle under А B and B C. The area of a rectangle is equal to the product of its base and altitude. Rectangles haying equal bases are to each other as their altitudes : rectangles...

...breadth. Compare their areas. and R a R' i a " S AREAS OF POLYGONS. PROPOSITION III. THEOREM. 398. The area of a rectangle is equal to the product of its base by its altitude. Let R be a rectangle, b its base, and a its altitude. To prove that the area...

...sense than that just stated. With this interpretation, the Corollary is usually stated as follows: The area of a rectangle is equal to the product of its base and altitude. (b) The numbers which represent the measures of me lines may be integral, fractional,...

...not unconscious that they are arithmetical and inductive. Just as the proof given in arithmetic that the area of a rectangle is equal to the product of its base and altitude, is inductive, probably does not include fractions and is surely not such a proof...

...not unconscious that they are arithmetical and inductive. Just as the proof given in arithmetic that the area of a rectangle is equal to the product of its base and altitude, is inductive, probably does not include fractions and is surely not such a proof...

...? The area of 10 strips must be 10 X 18 10 18 sq. yd., or 180 sq. yd. MEASUREMENT OF SURFACES RULE. The area of a rectangle is equal to the product of its base and altitude, expressed in like units. D Parallelograms The four-sided plane figure ABCD is a...

...for these proofs, and so our treatment by limits is less rigorous than these earlier ones. THEOREM. The area of a rectangle is equal to the product of its base by its altitude. The easiest way to introduce this is to mark a rectangle, with commensurable...

...wide ? The area of 10 strips must be 10 x 18 sq. yd., or 180 sq. yd. MEASUREMENT OF SURFACES RULE. The area of a rectangle is equal to the product of its base and altitude, expressed in like units. Parallelograms The four-sided plane figure A BCD is a parallelogram,...

...of the Greeks, which was logical and deductive, even from its beginning. PROPOSITION I. THEOREM 475. The area of a rectangle is equal to the product of its base and its altitude. (See § 476.) BC V AD « Given rectangle ABCD, with base AD and altitude AB,...