Sunday, December 9, 2012

CBSE 8th class maths with solutions



ORAL QUESTIONS CLASS VIII MATHS TOPIC :- GEOMETRY
01.  Define a Polygon .
02. How many  sides  are  there in Quadrilateral ?
03. How many sides  are there  in Octagon ?
04. What is a regular  Polygon ?
05.  What is a Diagonal?
06. What is the sum measures  of angles  of the  Convex  Quadrilateral ?
07.  How many sides  does  Heptagon  has ?
08.  Say True / False:  The polygon  with minimum  number  of sides  is three .
09.  Tell  the formula  to  find sum of all interior  angles of a polygon.
10.  What  are  the Maximum  number  of   right  angles in  the right  angled  triangle?
11.  What is the sum of interior angles of a Parallelogram ?
12.   What  is a Parallelogram ?
13.  What  is Rhombus ?
14.  What  is Rectangle ?
15.  Name the closed  figure  with 4 sides  .
16.  What is the number of sides  in hexagon  ?
17.   How many Diagonals does  a  regular  hexagon  have?
18.   What  is the Sum of interior angles  of a Pentagon ?
19.   What is the  sum  of the measures of the external   angles of any  polygon ?
20.   Name the Quadrilaterals whose diagonals bisect each other  ?
ANSWER KEY
1.      A   Simple closed  curve  made  up of  only  line segments  is called a  polygon .
2.      Four
3.      8
4.      A Regular polygon has equal  sides and  equal angles .
5.      A diagonal is a line segment connecting non- consecutive vertices  of a polygon
6.      360o
7.      7
8.      True
9.      (n – 2 ) x 180o
10.   One
11.   360o
12.   A parallelogram is a quadrilateral whose opposite sides are equal .
13.   A parallelogram  whose all sides are equal is called rhombus.
14.    A parallelogram each of whose angles measure 90o is called Rectangle .
15.   Quadrilateral
16.   Six
17.   Nine
18.   540o
19.   360o
20. Parallelogram , Rhombus , Square , Rectangle

Download Pdf Files
8th  Quadrilateral
8th  Quadrilateral and Parallelogram
8th  Exponents and Radicals
8th  Profit and Loss
8th  Discounts and Sales Tax
8th  Percentage Commercial Maths

Further reading  post 
PROPERTIES OF PARALLELOGRAM
ALGEBRAIC EXPRESSION
ALGEBRAIC IDENTITY

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