Euclid's Elements of GeometryBell & Daldy, 1872 - 261 páginas |
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Página 3
... parallelogram , is a quadrilateral figure , whose opposite sides are parallel . 31. A square is a quadrilateral figure , which is equi- lateral and equiangular . 32. Rectilineal figures which have more than four sides , are called ...
... parallelogram , is a quadrilateral figure , whose opposite sides are parallel . 31. A square is a quadrilateral figure , which is equi- lateral and equiangular . 32. Rectilineal figures which have more than four sides , are called ...
Página 26
... parallelogram if one angle be right , the remaining angles will be right angles . For the adjacent angle is right ... parallelograms have an angle 26 FIRST BOOK .
... parallelogram if one angle be right , the remaining angles will be right angles . For the adjacent angle is right ... parallelograms have an angle 26 FIRST BOOK .
Página 27
... parallelogram BF ; and subtract the triangle CFD from the same quadrilateral , the remainder is the parallelogram BD ; therefore the parallelograms BD and BF are equal ( by Ax . 3 ) . PROPOSITION XXXVI . THEOREM . Parallelograms ( BD ...
... parallelogram BF ; and subtract the triangle CFD from the same quadrilateral , the remainder is the parallelogram BD ; therefore the parallelograms BD and BF are equal ( by Ax . 3 ) . PROPOSITION XXXVI . THEOREM . Parallelograms ( BD ...
Página 28
Euclid T. W. Herbert. Prop . 33 ) , and BG is a parallelogram , therefore it is equal to both BD and EG ( by Prop ... parallelograms BAEC , BDFC will be equal ( by Prop . 35 ) , but the triangles BAC and BDC are halves of them ( by Prop ...
Euclid T. W. Herbert. Prop . 33 ) , and BG is a parallelogram , therefore it is equal to both BD and EG ( by Prop ... parallelograms BAEC , BDFC will be equal ( by Prop . 35 ) , but the triangles BAC and BDC are halves of them ( by Prop ...
Página 29
... parallelogram and a triangle ( BAC ) have the same base , and be between the same parallels , it will be double of the triangle . For draw CD . The D E triangle BDC is equal to the triangle BAC ( by Prop . 37 ) , but BE is double of the ...
... parallelogram and a triangle ( BAC ) have the same base , and be between the same parallels , it will be double of the triangle . For draw CD . The D E triangle BDC is equal to the triangle BAC ( by Prop . 37 ) , but BE is double of the ...
Otras ediciones - Ver todas
Euclid's Elements of Geometry: Translated From the Latin of ... Thomas ... Thomas Elrington Sin vista previa disponible - 2018 |
Euclid's Elements of Geometry: Translated From the Latin of ... Thomas ... Thomas Elrington Sin vista previa disponible - 2022 |
Euclid's Elements of Geometry: Translated from the Latin of ... Thomas ... Thomas Elrington Sin vista previa disponible - 2015 |
Términos y frases comunes
absurd AC and CB AC by Prop AC is equal angle ABC angles by Prop arch base bisected centre circumference CKMB co-efficient Const contained in CD contained oftener divided divisor double draw drawn equal angles equal by Constr equal by Hypoth equal by Prop equal to twice equation equi equi-multiples equi-submultiples equiangular equilateral external angle fore four magnitudes proportional given angle given circle given line given right line given triangle gonal half a right inscribed less multiplying oftener contained parallel parallelogram perpendicular PROPOSITION quantities rectangle under AC rectilineal figure remaining angles remaining side right angles right line AC Schol segment side AC similar similarly demonstrated squares of AC submultiple subtract THEOREM tiple touches the circle triangle BAC twice the rectangle
Pasajes populares
Página 18 - If two triangles have two sides of the one equal to two sides of the...
Página 28 - DE : but equal triangles on the same base and on the same side of it, are between the same parallels ; (i.
Página 207 - ... they have an angle of one equal to an angle of the other and the including sides are proportional; (c) their sides are respectively proportional.
Página 216 - If two triangles have one angle of the one equal to one angle of the other and the sides about these equal angles proportional, the triangles are similar.
Página 127 - In any proportion, the product of the means is equal to the product of the extremes.
Página 161 - Magnitudes are said to be in the same ratio, the first to the second and the third to the fourth, when, if any equimultiples whatever be taken of the first and third, and any equimultiples whatever of the second and fourth, the former equimultiples alike exceed, are alike equal to, or alike fall short of, the latter equimultiples respectively taken in corresponding order.
Página 112 - To reduce fractions of different denominators to equivalent fractions having a common denominator. RULE.! Multiply each numerator into all the denominators except its own for a new numerator, and all the denominators together for a common denominator.
Página 213 - ... are to one another in the duplicate ratio of their homologous sides.
Página 163 - Convertendo ; when it is .concluded, that if there be four magnitudes proportional, the first is to the sum or difference of the first and second, as the third is to the sum or difference of the third and fourth.
Página 88 - The angle in a semicircle is a right angle ; the angle in a segment greater than a semicircle is less than a right angle ; and the angle in a segment less than a semicircle is greater than a right angle.