## Explanatory Mensuration |

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### Contents

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### Common terms and phrases

ABCD acre angle Arithmetic axis base bottom breadth called centre chord of half circle circular circumference cone contains cost crown 8vo cube cubic cubic feet curved surface cylinder depth diagonal diameter dimensions distance divide double drawn edge ends English equal Example faces field figure find the area find the diameter find the length Find the volume Formulæ frustum gallons girt given Grammar History inner iron lead major Maps mean measures middle Multiply Note oblique perimeter perpendicular height piece plane poles prism Prob pyramid questions radii radius rectangle rectangular respectively right-angled triangle ring roods root round Rule School sector segment shape side slant height solid sphere square thick timber triangle vessel wedge weighs whole surface wide yards

### Popular passages

Page 2 - A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line.

Page 8 - We wish to prove that The three angles of any triangle are equal to two right angles. Let...

Page 70 - The circumference of a circle is divided into 360 equal parts, called degrees; each degree into 60 minutes ; each minute into 60 seconds.

Page 31 - From half the sum of the three sides, subtract each side separately; multiply the half -sum and the three remainders together; the square root of the product is the area.

Page 128 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.

Page 57 - To find the area of a circle, multiply the square of the diameter by .7854.

Page 5 - A circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the center, Fig.

Page 2 - But when a straight line standing upon another straight line makes the adjacent angles equal to one another, each of the angles is a right angle : (Ю.

Page 41 - Multiply the sum of the parallel sides by the perpendicular distance between them, and half the product will be the area.

Page 71 - Or, from 8 times the chord of half the arc, subtract the chord of the whole arc, and $ of the remainder will be the length of the arc, nearly.