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" The square described on the hypothenuse of a rightangled triangle is equal to the sum of the squares described on the other two sides. "
A Theoretical and Practical Arithmetic: Designed for Common Schools and ... - Σελίδα 133
των Daniel Leach - 1853
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Elements of Plane and Solid Geometry

Alan Sanders - 1903 - 392 σελίδες
...PROPOSITION XI. THEOREM 643. The square described on the hypotenuse of a rightangled triangle is equivalent to the sum of the squares described on the other two sides. Let ABC be a right-angled triangle. To Prove ~Bi? = AJ? + AC* Proof. Describe squares on the three...

A Text-book of Euclid's Elements for the Use of Schools, Βιβλίο 1

Euclid - 1904 - 488 σελίδες
...fill up the square DC. PROPOSITION 48. THEOREM. If the square described on one side of a triangle be equal to the sum of the squares described on the other two sides, then the angle contained by these two sides shall be a right angle. BC Let ABC be a triangle ; and...

Arithmetic for Business with Short Methods and Rapid Calculations in All ...

Jacob Henry Minick, Clement Carrington Gaines - 1904 - 412 σελίδες
...with the base. 438. To find the Hypotenuse. It is seen that the square described on the hypotenuse is equal to the sum of the squares described on the other two sides. Hence. RULE. — Add the square of the lose to the square of tJie perpendicular, and extract the square...

Exercises in Concrete Geometry: With Supplementary Discussions

David Sands Wright - 1906 - 104 σελίδες
...given triangles. 25. Theorem. The square described on the side of a triangle opposite an acute angle is equal to the sum of the squares described on the other two sides diminished by twice the product of one of those sides by the projection of the other side upon it....

Geometry: Plane Trigonometry. Chain Surveying. Compass Surveying. Transit ...

International Correspondence Schools - 1906 - 634 σελίδες
...Theorem or Pythagoras. — In any right triangle, the square described on the hypotenuse is equivalent to the sum of the squares described on the other two sides. Let ABC, Fig. 38, be a right triangle. Draw an equal triangle in the position C B' C', so that C B'...

Woodworking for Beginners: A Manual for Amateurs

Charles Gardner Wheeler - 1907 - 594 σελίδες
...the squares of the two sides. (The square described on the hypothenuse of a right-angled triangle is equal to the sum of the squares described on the other two sides.) You can measure the diagonal directly from a plan if you understand mechanical drawing well enough...

Intermediate Geometry: Being Sections V and VI of "geometry, Theoretical and ...

Walter Percy Workman - 1908 - 228 σελίδες
...two sides ...... (Euc I. 47) 212 RT.2''. — -If the square described ou one side of a triangle is equal to the sum of the squares described on the other two sides, the angle contained by these two sides is a right angle. (Euc. I. 48) 213 BT.3.t — In a right-angled...

A School Geometry, Μέρη 1-4

Henry Sinclair Hall - 1908 - 286 σελίδες
...from A ? GEOMETRY. THEOREM 30. [Euclid I. 48.] If the square described on one side of a triangle is equal to the sum of the squares described on the other two sides, then the anglt contained by these two sides is a right angle. Let ABC be a triangle in which the sq....

I.C.S. Reference Library, Τόμος 1

1909 - 870 σελίδες
...PRINCIPLE OF THE RIGHT TRIANGLE 58. In any right triangle, the square described on the hypotenuse is equal to the sum of the squares described on the other two sides. If ABC, Fig. 48, is a right triangle, Pl°- 48 right angled at B, then the square described on the...

Journal of Education

1911 - 1334 σελίδες
...parallels, are equal in area. 4. In a right-angled triangle the square described on the hypotenuse is equal to the sum of the squares described on the other two sides. 6. If from a point O within a triangle A, B, C, perpendiculars OX, OY, OZ, are drawn to the sides BC,...




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