# Algebra: First Course

Century Company, 1913 - Algebra - 283 pages
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Very informative. Suggested, although was written in 1913 and its 2010.

### Contents

 CHAPTER VIII 81 CHAPTER IX 90

### Popular passages

Page 144 - PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre.
Page 138 - The area of a parallelogram is equal to the product of its base and its height: A = bx h.
Page 11 - Both terms of a fraction may be multiplied by the same number without changing the value of the fraction.
Page 142 - The area of a trapezoid is equal to one.half the product of its altitude and the sum of its bases.
Page 196 - Two workmen can do a piece of work in 6 days. How long will it take each of them to do the work, if it takes one 5 days longer than the other ? 19.
Page 88 - If an expression within a parenthesis is preceded by a minus sign, the parenthesis may be removed ; but the sign of each term in the parenthesis must be changed; the sign + to — and the sign — to +. 155.
Page 193 - If two chords intersect within a circle, the product of the segments of one chord is equal to the product of the segments of the other chord.
Page 39 - ... the sum of the first and second, what is the number of degrees in each angle of the triangle, both interior and exterior?
Page 26 - For example, the sum of the angles of a quadrilateral is four right angles ; of a pentagon, six right angles ; of a hexagon, eight right angles, etc.
Page 30 - Unit of weight, the weight of a cubic centimeter of water at a temperature of 4 degrees centigrade.