Euclid's Elements of plane geometry [book 1-6] explicitly enunciated, by J. Pryde. [With] Key1860 |
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Resultat 1-5 av 23
Side 18
... altitude ( I. 37 , and A , Scholium 1 ) ; that is ( Def . 48 ) , the perpendiculars from A and B on CO , or CO produced , must be equal , and consequently the triangles AOF , BOF have the same altitude , considering OF as their base ...
... altitude ( I. 37 , and A , Scholium 1 ) ; that is ( Def . 48 ) , the perpendiculars from A and B on CO , or CO produced , must be equal , and consequently the triangles AOF , BOF have the same altitude , considering OF as their base ...
Side 19
... altitudes FN , KM , and AO , of the three triangles FBD , KCE , and ABC are all equal , and their bases BD , CE , and BC are all equal , being sides of the same square ; therefore ( A , Scholium 2 ) their areas are all equal . The four ...
... altitudes FN , KM , and AO , of the three triangles FBD , KCE , and ABC are all equal , and their bases BD , CE , and BC are all equal , being sides of the same square ; therefore ( A , Scholium 2 ) their areas are all equal . The four ...
Side 31
... altitude ; the triangle ABO is therefore double of BEO ; in the same manner it can be proved that the triangle ACO is double of CFO ; therefore the triangle ABO = ACO ( Ax . 6 ) , but the whole triangle ABD = ADC , since BD = DC , hence ...
... altitude ; the triangle ABO is therefore double of BEO ; in the same manner it can be proved that the triangle ACO is double of CFO ; therefore the triangle ABO = ACO ( Ax . 6 ) , but the whole triangle ABD = ADC , since BD = DC , hence ...
Side 32
... altitude , and therefore the base AO is double of OD . In the same manner it can be proved that BO is double of OF , and that CO is double of OE . Lastly , in the triangle AOB the base AB is bisected in E , and EO drawn to the vertex ...
... altitude , and therefore the base AO is double of OD . In the same manner it can be proved that BO is double of OF , and that CO is double of OE . Lastly , in the triangle AOB the base AB is bisected in E , and EO drawn to the vertex ...
Side 44
... altitude of a triangle , to construct it . Let AB be the base , V the vertical angle , and H the altitude of the triangle , to construct it . On the base AB describe a segment of a circle ABDE , con- taining an angle equal to the given ...
... altitude of a triangle , to construct it . Let AB be the base , V the vertical angle , and H the altitude of the triangle , to construct it . On the base AB describe a segment of a circle ABDE , con- taining an angle equal to the given ...
Andre utgaver - Vis alle
Euclid's Elements of plane geometry [book 1-6] explicitly enunciated, by J ... Euclides Uten tilgangsbegrensning - 1860 |
Euclid's Elements of Plane Geometry [Book 1-6] Explicitly Enunciated, by J ... Euclides,James Pryde Ingen forhåndsvisning tilgjengelig - 2023 |
Euclid's Elements of Plane Geometry [book 1-6] Explicitly Enunciated, by J ... Euclides,James Pryde Ingen forhåndsvisning tilgjengelig - 2018 |
Vanlige uttrykk og setninger
AB² AC² AD² altitude angle ACB BC² BD² bisects the angle centre chord circumference consequently construction cut harmonically describe a circle diagonals diameter dicular draw equal angles equiangular equilateral triangle EXERCISE exterior angle figure find a point find the locus given angle given circle given line given point greater half hence hypotenuse intersection isosceles triangle Let ABC line joining lines be drawn lines drawn opposite sides Pages parallelogram perpen perpendicular Price produced quadrilateral radius rectangle rectangle contained required locus required point required to prove required triangle right angles right-angled triangle Scholium segments semiperimeter side AC square straight line tangent touch triangle ABC Trig vertex vertical angle whence wherefore Wood-cuts
Populære avsnitt
Side 72 - ABC be a triangle, and DE a straight line drawn parallel to the base BC ; then will AD : DB : : AE : EC.
Side 19 - The line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of the third side.
Side 55 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Side 26 - Prove that three times the sum of the squares on the sides of a triangle is equal to four times the sum of the squares on the lines drawn from the vertices to the middle points of the opposite sides.
Side 73 - If three quantities are in continued proportion, the first is to the third as the square of the first is to the square of the second. Let a : b = b : c. Then, 2=*. b с Therefore, ^xb. = ^x± b с bb Or °r
Side 58 - EH parallel to AB or DC, and through F draw FK parallel to AD or BC ; therefore each of the figures, AK, KB, AH, HD, AG, GC, BG...
Side 29 - The sum of the squares of the sides of a quadrilateral is equal to the sum of the squares of the diagonals...
Side 24 - If from the middle point of one of the sides of a right-angled triangle, a perpendicular be drawn to the hypotenuse, the difference of the squares on the segments into which it is divided, is equal to the square on the other side.
Side 2 - Of all triangles having the same vertical angle, and whose bases pass through a given point, the least is that whose base is bisected in the given point.