http://everydaymath.edublogs.org Another excellent Edublogs.org weblog Tue, 25 Aug 2009 10:03:16 +0000 http://backend.userland.com/rss092 en From geometry terms and definitions ,we know An exterior angle (or external angle) is an angle formed by one side of a simple polygon and a line extended from an adjacent side. In any triangle, if one of the sides is produced, then the exterior angle is greater than either of the ... http://everydaymath.edublogs.org/2009/08/25/exterior-angles-of-a-polygon/ Most of the students are don't realize what is Universal Set U is all about ,Let's see an example problem which explains us more .... Question:- Out of forty students, 14 are taking English Composition and 29 are taking Chemistry. If five students are in both classes, how many students are in ... http://everydaymath.edublogs.org/2009/08/18/what-is-universal-set-u/ An arithmetic progression (A.P.) or arithmetic sequence is a sequence of numbers such that the difference of any two successive members of the sequence is a constant. For instance, the sequence 3, 5, 7, 9, 11, 13... is an arithmetic progression with common difference 2. If the initial term of an ... http://everydaymath.edublogs.org/2009/07/23/a-problem-on-arithmetic-progression/ Topic:-Trigonometry Trigonometry is a branch of mathematics that deals with triangles, particularly those plane triangles in which one angle has 90 degrees (right triangles). Trigonometry deals with relationships between the sides and the angles of triangles and with the trigonometric functions, which describe those relationships. This trigonometry help show us how to ... http://everydaymath.edublogs.org/2009/07/01/how-to-solve-a-trigonometry-problem/ For determining the length of the chords in Circle, Rectangular Co ordinate System is used. According the graphical representation, radius towards right side is positive and towards left is negative. Topic : Length of Chords in a Circle of radius r Using definite integrals we can calculate the length of chords with ... http://everydaymath.edublogs.org/2009/05/14/question-on-circles-to-find-length-of-the-chords/ A geometrical figure Cone with different attributes like base, slant side and height but this problem helps you to calculate height of cone with the help of volume of the cone. Topic : Height of a Cone Formula for finding a Volume of cone = 1/3 * ￗ * r² * ... http://everydaymath.edublogs.org/2009/04/30/word-problem-on-problem-on-surface-area-of-a-geometrical-figure-cone/ Topic : Geometric Progression   Problem : The fourth term of a G.P. is 9 and the ninth term is 2,187. Find the first 4 terms of the G.P.   Solution :   Let the G.P. be a, ar, ar2 , ar3, ...   T4 = ar3 = 9 ---------- (1) T8 = ar8 = 2,187 ------ (2)   (2) ¸(1) ... http://everydaymath.edublogs.org/2009/04/09/problem-to-find-the-terms-in-geometric-progressions/ Topic : Solve for x Problem : Solve (x+2)/(x-3) = 42/(x+7) Solution : Cross multiply, (x + 2) (x + 7) = 42 (x - 3) x + 2x + 7x + 14 = 42x -126 x + 9x + 14 = 42x - 126    - 9x  - 14 = -9x - 14(adding -9x and -14 ... http://everydaymath.edublogs.org/2009/04/02/a-simple-problem-to-find-unknown-value-of-a-variable/ Topic : Simultaneous Equation Problem : Solve 3x -2y = 3 and x = y + 4 Solution : 3x -2y = 3 ------- (1) x = y + 4 ------- (2) Use equation (2) in (1) for substitution method So, 3x -2y = 3 3(y+4) - 2y = 3 3y + 12 - 2y = 3 y + ... http://everydaymath.edublogs.org/2009/03/26/question-to-solve-a-simultaneous-equation-by-substitution-method/ Topic : Integration Question : Integrate e1/x / x2 Solution :                     http://everydaymath.edublogs.org/2009/03/24/simple-integration-problem/