## Elements of Geometry and Trigonometry |

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Page 9

A

A

**surface**is that which has length and breadth , without height or thickness . 6. A plane is a**surface**, in which , if two points be assumed at pleasure , and connected by a straight line , that line will lie wholly in the**surface**. 7. Page 41

A segment is the

A segment is the

**surface**or portion of a circle , included between an arc and its chord . 5. A sector is the part of the circle included between an arc DE , and the two radii CD , CE , drawn to the extremities of ... Page 68

The area and

The area and

**surface**of a figure , are terms very nearly synonymous . The area designates more particularly the super- ficial content of the figure . The area is expressed numeri- cally by the number of times which the figure contains ... Page 72

This product will give the number of superficial units in the

This product will give the number of superficial units in the

**surface**; because , for one unit in height , there are as many superficial units as there are linear units in the base ; for two units in height twice as many ; for three ... Page 73

... the rectangle B would then have for its absolute measure , in other words , it would be equal to of a super- ficial unit . It is more common and more simple , to assume the square as the unit of

... the rectangle B would then have for its absolute measure , in other words , it would be equal to of a super- ficial unit . It is more common and more simple , to assume the square as the unit of

**surface**; and to se- lect that square ...### What people are saying - Write a review

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### Common terms and phrases

ABCD adjacent altitude base become Book called centre chord circle circumference circumscribed common cone consequently construction contained corresponding cosine Cotang cylinder described diameter difference distance divided draw drawn equal equation equivalent evident expressed extremities fall figure follows formed formulas four frustum give given gles greater half hence homologous included inscribed intersection less likewise logarithm manner means measured meet middle multiplied opposite parallel parallelogram parallelopipedon pass perpendicular plane polygon prism PROBLEM Prop proportional PROPOSITION pyramid quantities radii radius ratio reason rectangle regular remaining right angles Scholium segment shown sides similar sine solid solid angle sphere spherical triangle square straight line Suppose surface taken tang tangent THEOREM third triangle triangle ABC vertex whole