# 8th Understanding

Information about 8th Understanding

Published on May 31, 2013

Author: allwynasir

Source: authorstream.com

: S.JASMINE SUGIRTHA MATHS 1 Understanding Quadrilaterals Class VIII S.JASMINE SUGIRTHA 1 MATHS PowerPoint Presentation: Quadrilaterals A quadrilateral is a four sided figure. The four angles of a quadrilateral sum to 360 . b  a  c  d  a  + b  + c  + d  = 360 (This is because a quadrilateral can be divided up into two triangles.) Note : Opposite angles in a cyclic quadrilateral sum to 180 . a  + c  = 180  b  + d  = 180  2 MATHS S.JASMINE SUGIRTHA PowerPoint Presentation: Parallelogram 1. Opposite sides are parallel 2. Opposite sides are equal 3 MATHS S.JASMINE SUGIRTHA PowerPoint Presentation: .. .. . . 3. Opposite angles are equal 4. Diagonals bisect each other S.JASMINE SUGIRTHA 4 MATHS PowerPoint Presentation: Rhombus 1. Opposite sides are parallel 2. All sides are equal 5 MATHS S.JASMINE SUGIRTHA PowerPoint Presentation: 3. Opposite angles are equal .. . .. . 4. Diagonals bisect each other S.JASMINE SUGIRTHA 6 MATHS PowerPoint Presentation: 5. Diagonal intersects at right angles 6. Diagonals bisect opposite angles .. .. . . S.JASMINE SUGIRTHA 7 MATHS PowerPoint Presentation: Rectangle 1. Opposite sides are parallel 2. Opposite sides are equal 3. All angles are right angles 4. Diagonals are equal and bisect each other 8 MATHS S.JASMINE SUGIRTHA PowerPoint Presentation: Square 1. Opposite sides are parallel 2. All sides are equal 3. All angles are right angles 9 MATHS S.JASMINE SUGIRTHA PowerPoint Presentation: 4. Diagonals are equal and bisect each other 5. Diagonals intersect at right angles 6. Diagonals bisect each angle . . . . . . . . S.JASMINE SUGIRTHA 10 MATHS PowerPoint Presentation: S.JASMINE SUGIRTHA MATHS 11 End End

31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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31. 05. 2013
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