## Elements of Geometry: With Practical Applications, for the Use of Schools |

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Elements of Geometry: With Practical Applications, for the Use of Schools Timothy Walker No preview available - 2019 |

Elements of Geometry: With Practical Applications, for the Use of Schools Timothy Walker No preview available - 2019 |

### Common terms and phrases

A B C adding altitude apply base called centre chord circ circle circumference coincide common cone Consequently considered construction contain convex surface cube cylinder definition demonstrated described determine diameter difference direction distance divided draw drawn entire equal equivalent evident expressed extremities faces fall feet figure frustum geometry given gles greater half height Hence homologous inches inscribed intersection length less manner mean measure meet middle namely number of sides object oblique parallel parallelogram parallelopiped pass perimeter perpendicular placed plane polygon position preceding prism proportion proposition proved pyramid radii radius ratio reasoning regular polygon remain represent respect right angle sector segment sides similar solidity sphere square straight line Suppose surface taken term third tion triangle triangular true unit vertex vertices zone

### Popular passages

Page ii - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...

Page xiv - Magnitudes which coincide with one another, that is, which exactly fill the same space, are equal to one another.

Page 30 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. D c A' D' Hyp. In triangles ABC and A'B'C', ZA = ZA'. To prove AABC = ABxAC. A A'B'C' A'B'xA'C' Proof. Draw the altitudes BD and B'D'.

Page xiv - LET it be granted that a straight line may be drawn from any one point to any other point.

Page 25 - In any proportion, the product of the means is equal to the product of the extremes.

Page 38 - The perimeters of two regular polygons of the same number of sides, are to each other as their homologous sides, and their areas are to each other as the squares of those sides (Prop.

Page 25 - Multiplying or dividing both the numerator and denominator of a fraction by the same number does not change the value of the fraction.

Page xiv - Things which are equal to the same thing are equal to one another. 2. If equals be added to equals, the wholes are equal. 3. If equals be taken from equals, the remainders are equal. 4. If equals be added to unequals, the wholes are unequal. 5. If equals be taken from unequals, the remainders are unequal. 6. Things which are double of the same are equal to one another.

Page 42 - The area of a trapezoid is equal to the product of its altitude, by half the sum of its parallel bases.

Page xiv - If a straight line meets two straight lines, so as to make the two interior angles on the same side of it taken together lesi than two right angles...