Sunday, 22 November 2015

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DIGITAL TEXT BOOK MATHEMATICS CLASS VIII SUPRIYA.M.L MATHEMATICS 18014376013 CHAPTER 1 QUADRILATERALS A quadrilateral is a polygon having four sides (or edges), four vertices (or corners) and four an...DIFFERENT TYPES OF QUADRILATERALS RECTANGLE Opposite sides are equal. Opposite sides are parallel. Angles are right angled...SQUARE All sides are equal. Opposite sides are parallel. Angles are right angled. Diagonals are equal. PARALLELOGRAM Opposite sides are equal. Opposite sides are parallel. Diagonals are bisects each other. Opposite angles are...RHOMBUS All sides are equal. Opposite sides are parallel. Opposite sides are equal. Sum of angles are same side. TRAPEZIUM One pair of opposite sides is parallel. Sum of angles on nonparallel sides is 180 degree. CHAPTER 2 AREA OF QUADRILATERALS RECTANGLE b l Area of rectangle=lb l - Length b - Bredth Exercise 1. Length of a rectangl...SQUARE a a Area of square = a2 A = length of one side Exercise 1. Length of one side of a square is 15 cm. find its area. PARALLELOGRAM b Area of parallelogram = bh b = base h = height Exercise 1. Length of base of a parallelogram is 9 cm and i...RHOMBUS Area of rhombus= ½ d1d2 d1,d2= length of diagonals Exercise 1. Find the area of a rhombus having diagonals of leng...TRAPEZIUM Area=1/2 h(a+b) h - Height a,b - length of two parallel sides Exercise 1. Length of parallel sides of a trapeziu...
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