Mensuration for elementary and middle class schools
1875 - 85 pages
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16 Maps acres already ATLAS base breadth broad calculated called centre chains circle circular circumference cloth cloth lettered COLLINS cone consisting of 32 contains convenient cost cube cylinder diagonal diameter distance divided DRAWING Edinburgh ellipse entries equal Europe exactly EXERCISES Fcap feet field figure find its area find its volume find the area foot frustrum GEOGRAPHY Glasgow greater half height hexagonal Historical hypothenuse Imperial inches land length LESSON LL.D London mean measure method miles multiply North America opposite parallel pentagonal perpendicular Physical Physical Map pickets piece plane poles polygon practically prism pyramid radius rectangle regular respectively right angles round rule SCHOOL sector SERIES sides solid South sphere square STANDARD straight line suppose surface surveyor thickness trapezoid triangle triangular volume whole yards
Page 10 - When a straight line standing on another straight line makes the adjacent angles equal to one another, each of the angles is called a right angle ; and the straight line which stands on the other is called a perpendicular to it.
Page 29 - A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another.
Page 23 - RULE. From half the sum of the three sides, subtract each side separately; multiply the half sum and the three remainders together, and the square root of the product will be the area required.