An Elementary Course of Plane GeometryThomas Murray, 1870 - 16 σελίδες |
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Σελίδα ix
... Length . - Tape Measure . - Compasses . - Surveyor's Chain . - Properties of Lines . CHAP . II . - Angles · Definitions of various Angles ; how named . - Perpendiculars and Obliques . - Angles formed by intersecting Lines . - Set ...
... Length . - Tape Measure . - Compasses . - Surveyor's Chain . - Properties of Lines . CHAP . II . - Angles · Definitions of various Angles ; how named . - Perpendiculars and Obliques . - Angles formed by intersecting Lines . - Set ...
Σελίδα x
... Lengths of sides of inscribed and circumscribed Polygons . - Star Polygons , constructed by Reduction or Extension . CHAP . XIII . - Equality and Similarity of Polygons . Regular Polygons investigated in same Manner as with other ...
... Lengths of sides of inscribed and circumscribed Polygons . - Star Polygons , constructed by Reduction or Extension . CHAP . XIII . - Equality and Similarity of Polygons . Regular Polygons investigated in same Manner as with other ...
Σελίδα 2
... length touches the surface , we say that the board is even , and that its surface is a plane . 4. A plane is a surface such that a straight line applied to it in any direction , coincides with the surface in every part . 5. If our ...
... length touches the surface , we say that the board is even , and that its surface is a plane . 4. A plane is a surface such that a straight line applied to it in any direction , coincides with the surface in every part . 5. If our ...
Σελίδα 5
... length used in England is the yard , which is the length of a straight line joining two marks on a bar of metal preserved in the Houses of Parliament , at Westminster . Several exact copies of this bar are deposited in secure places ...
... length used in England is the yard , which is the length of a straight line joining two marks on a bar of metal preserved in the Houses of Parliament , at Westminster . Several exact copies of this bar are deposited in secure places ...
Σελίδα 6
... length as the surveyor's chain , but subdivided into feet and inches . So that the length of lines is esti- mated in England by com- paring them with the stan- the same . To measure lines on paper an ivory scale , divided into inches or ...
... length as the surveyor's chain , but subdivided into feet and inches . So that the length of lines is esti- mated in England by com- paring them with the stan- the same . To measure lines on paper an ivory scale , divided into inches or ...
Άλλες εκδόσεις - Προβολή όλων
An Elementary Course of Plane Geometry and Mensuration Richard Wormell Δεν υπάρχει διαθέσιμη προεπισκόπηση - 2015 |
Συχνά εμφανιζόμενοι όροι και φράσεις
A B C adjacent angles alternate angles angle equal angular points apex base bisect centre centre of symmetry chord circumscribed coincide construction contained cumference decagon describe a circle diagonals diameter dicular distance divide dodecagon draw a straight equal arcs equal circles equilateral triangle extremities figure Find the area Geometry given angle given circle given point given polygon given radius given straight line greater half height Hence hexagon hypothenuse inscribed inscribed angle instrument interior angles isosceles triangle length line drawn line joining line parallel measure middle point number of sides opposite angles opposite sides parallel straight lines parallelogram pentagon perimeter perpen perpendicular plane Plane Geometry point of contact point of intersection proportional protractor Prove quadrilateral radii ratio rectangle regular polygon respectively equal rhombus right-angled triangle ruler secant segments similar square symmetrical axis tangent vertical
Δημοφιλή αποσπάσματα
Σελίδα 33 - Any two sides of a triangle are together greater than the third side.
Σελίδα 266 - IF from any point without a circle two straight lines be drawn, one of which cuts the circle, and the other touches it ; the rectangle contained by the whole line which cuts the circle, and the part of it without the circle, shall be equal to the square of the line which touches it.
Σελίδα vi - In my own time," says Seneca, "there have been inventions of this sort, transparent windows, tubes for diffusing warmth equally through all parts of a building, short-hand, which has been carried to such a perfection that a writer can keep pace with the most rapid speaker. But the inventing of such things is drudgery for the lowest slaves; philosophy lies deeper. It is not her office to teach men how to use their hands.
Σελίδα 59 - If a side of any triangle be produced, the exterior angle is equal to the two interior and opposite angles; and the three interior angles of every triangle are together equal to two right angles.
Σελίδα 146 - If from a point without a circle a tangent and a secant be drawn, the tangent is a mean proportional between the whole secant and its external segment.
Σελίδα 153 - Describe a circle which shall pass through two given points, and have its centre in a given line.
Σελίδα 68 - If two parallel lines are cut by a third straight line, the sum of the two interior angles on the same side of the transversal is equal to two right angles, (p.
Σελίδα 86 - If a straight line be divided into any two parts, the square on the whole line is equal to the squares on the two parts, together with twice the rectangle contained by the two parts.
Σελίδα 264 - To prove that the exterior angle of a triangle is equal to the sum of the two interior opposite angles (see fig.
Σελίδα 11 - I., 5), (3) that, if two straight lines cut one another, the vertically opposite angles are equal (Eucl.