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S.chand books class 8 maths solution chapter 23 Linear Graphs exercise 23 A

EXERCISE 23 A
1.Draw your own set of axes on a graph paper and plot the following points
(i) A (5, 3)
(ii) B (—4, 6)
(iii) C (—3, -7)
(iv) D (6, —5)
(v) E (6, 6)
(vi) F (-6, 3)
(vii) G(-8,-6)
(viii) H(-1,8)

2.Write down the coordinates of:
(i) The vertices P, Q and R of triangle PQR.
(ii) The vertices A, B, C and D of the parallelogram ABCD. How long is AB ? How long is DC?
(iii) The centre , L of the circle. What is the length of diameter of the circle ?
(iv) The vertices of the trapezium EFGH. How long is FG ? How long is EH ?

3.Name the points which lie on (i) the x-axis , (ii) the y-axis
A(5,0) , B(0,3) , C(-8,4) , D(0,-4)

4.Plot the points A(2,1) , B(-1,3) , C(-3,0) , D(0,-1). Join the points to make the figure ABCD. What is the name of the figure ?

5.The points A(-2,-1) , B(-2,3) , C(-6,3) are three corners of a square ABCD. Plot the points and find the point D. Give the coordinates of D.

6.Plot the points A(-7,-3) , B(5,3) and mark the point C , the mid-point of the line segment AB. Give the coordinates of C.

7.Draw a coordinate grid on squared paper. Number each axis from —10 to 10. Plotthese points and complete the shapes. Each shape has one corner missing. Write down the missing coordinates.
(i) square: (1,1), (5,1), (1,5), (_,_)
(ii) rectangle: (2,7) , (7,7) , (7,10) , (_,_)
(iii) parallelogram: (-9,10) , (7,10) , (-6,7) , (_,_)
(iv) octagon: (-6,1) , (-4,-3) , (-2,-3) , (0,-1) , (0,1) (-2,3) , (-4,3) , (_,_)

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