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abscisses altitude Answer arithmetical arithmetical mean arithmetical progression axis base bisected breadth centre chord ciphers circle circumference common denominator compound cone consequently cube root curve cylinder decimal denotes diameter difference distance divide dividend division divisor draw ellipse equal equation equiangular ExAM ExAMPLES feet figure fraction frustum Geom geometrical geometrical progression given number gives half Hence improper fraction inches inscribed integer length logarithm manner multiply º º ordinates OREM parabola parallel parallelogram perimeter perpendicular plane polygon pound prism PROBLEM proportional Q. E. D. Corol quantity Quest quotient radius ratio rectangle Reduce remainder right angles right-angled triangle rule secant segment sides sine square root subtract surd surface tangent theor THEOREM theref triangle Abc VULGAR FRACTIONS whole number yards
Σελίδα 292 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
Σελίδα 22 - The sum of the three angles of any triangle is equal to two right angles, this is a Theorem, the truth of which is demonstrated by Geometry.
Σελίδα 320 - Proportion, when the ratio is the same between every two adjacent terms, viz. when the first is to the second, as the second to the third, as the third to the fourth, as the fourth to the fifth, and so on, all in the same common ratio.
Σελίδα 301 - In any triangle, the difference of the squares of the two sides w equal to the difference of the squares of the segments of the base, or of the two lines or distances included between the extremes of the base and the perpendicular.
Σελίδα 190 - When the index of the logarithm to be divided is negative, and does not exactly contain the divisor without some remainder, increase the index by such a number as will make it exactly divisible by the index, carrying the units borrowed, as so many tens, to the left-hand place of the decimal, and, then divide as in whole numbers. EXAMPLES. 1.
Σελίδα 312 - The angle formed by a tangent to a circle, and a chord drawn from the point of contact, is equal to the angle in the alternate segment.
Σελίδα 377 - The Circumference of every circle is supposed to be divided into 360 equal parts, called Degrees ; and each degree into 60 Minutes, each minute into 60 Seconds, and so on. Hence a semicircle contains 180 degrees, and a quadrant 90 degrees. 58. The Measure of an angle is an arc of any circle contained between the two lines which form that angle, the angular point being the centre ; and it is estimated by the number of degrees contained in that arc.
Σελίδα 458 - BRICKLAYERS- WORK. — Brickwork is estimated at the rate of a brick and a half thick. So that, if a wall be more or less than this standard thickness, it must be reduced to it, as follows : — Multiply the superficial content of the wall by the number of half bricks in the thickness, and divide the product by 3. The...