Essentials of GeometryS.C. Griggs, 1883 - 267 σελίδες |
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Αποτελέσματα 1 - 5 από τα 51.
Σελίδα 5
... greater than a right angle ; as , the angle C , or the angle A CD above . 12. Angles , like other quantities , may be added to , or subtracted from , each other . Thus : BCD BCE + ECD , = and BCE = BCD - ECD . A B E D B D 13. The ...
... greater than a right angle ; as , the angle C , or the angle A CD above . 12. Angles , like other quantities , may be added to , or subtracted from , each other . Thus : BCD BCE + ECD , = and BCE = BCD - ECD . A B E D B D 13. The ...
Σελίδα 6
... greater than any of its parts . 5. The whole is equal to the sum of all its parts . 6. All right angles are equal . 7. Only one straight line can be drawn from one point to another . 8. A straight line is the shortest distance between ...
... greater than any of its parts . 5. The whole is equal to the sum of all its parts . 6. All right angles are equal . 7. Only one straight line can be drawn from one point to another . 8. A straight line is the shortest distance between ...
Σελίδα 7
... greater angle , a or a ' ? a or b ? 5 . a line . We call a string or telegraph wire What is it , strictly speaking ? 6. What kind of a point , really , is that made on paper with the end of a pencil ? b a ar 7. How many straight lines ...
... greater angle , a or a ' ? a or b ? 5 . a line . We call a string or telegraph wire What is it , strictly speaking ? 6. What kind of a point , really , is that made on paper with the end of a pencil ? b a ar 7. How many straight lines ...
Σελίδα 13
... greater than a right angle , as C. C 7. Triangles are classified , with reference to their sides , as scalene , isosceles and equilateral . 1st . A Scalene Triangle is one having D no two sides equal , as D. 2d . An Isosceles Triangle ...
... greater than a right angle , as C. C 7. Triangles are classified , with reference to their sides , as scalene , isosceles and equilateral . 1st . A Scalene Triangle is one having D no two sides equal , as D. 2d . An Isosceles Triangle ...
Σελίδα 14
... greater than their difference . A B Let A B C be any triangle ; then : First : Any side will be less than the sum of the other two . on the For , the direct distance from A to C , measured straight line A C , is less than the distance ...
... greater than their difference . A B Let A B C be any triangle ; then : First : Any side will be less than the sum of the other two . on the For , the direct distance from A to C , measured straight line A C , is less than the distance ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
A B and C D ABCD adjacent angles angle equal apothem bisect central angles centre circle whose radius circumference coincide construct convex surface cylinder diagonals diameter distance divided draw drawn equal altitudes equal bases equal circles equally distant equiangular EXERCISES feet frustum generatrix given angle given circle given line given point greater Hence homologous sides hypotenuse included angle inscribed angle inscribed circle interior angles intersect isosceles triangle lune number of sides oblique parallel parallelogram parallelopiped perimeter perpendicular plane prism Prob proportional pyramid Q. E. D. Cor Q. E. F quadrilateral QUERIES radii ratio rectangle regular polygon right cone right triangle Scholium secant segments similar slant height sphere spherical triangle square straight line tangent triangle A B C vertex vertices
Δημοφιλή αποσπάσματα
Σελίδα 18 - if two triangles have two sides of the one equal to two sides of the...
Σελίδα 110 - In any triangle the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides diminished by twice the product of one of those sides and the projection of the other upon it.
Σελίδα 13 - If two triangles have two angles and the included side of the one, equal to two angles and the included side of the other, each to each, the two triangles will be equal.
Σελίδα 107 - If two triangles have two sides and the included angle of the one equal to two sides and the included angle of the other, each to each, they are equal in all their parts.
Σελίδα 24 - If two triangles have two angles of the one equal to two angles of the other, each to each, and one side equal to one side, viz.
Σελίδα 38 - If two sides of a quadrilateral are equal and parallel, the figure is a parallelogram.
Σελίδα 42 - If the product of two quantities is equal to the product of two others, two of them may be made the means, and the other two the extremes of a proportion. Let bc=ad.
Σελίδα 232 - In any spherical triangle, the greater side is opposite the greater angle ; and conversely, the greater angle is opposite the greater side.
Σελίδα 14 - In an isosceles triangle the angles opposite the equal sides are equal.
Σελίδα x - AXIOM is a self-evident truth ; such as, — 1. Things which are equal to the same thing, are equal to each other. 2. If equals be added to equals, the sums will be equal. 3. If equals be taken from equals, the remainders will be equal. 4. If equals be added to unequals, the sums will be unequal.