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Selina solutions
Grade 9 
Mathematics
Selina Solutions CONCISE subject class 9-ICSE-Maths
Chapter 26- Co-ordinate Geometry
Exercise 26(A)
Question 8
Mathematics
Selina Solutions CONCISE subject class 9-ICSE-Maths
Chapter 26- Co-ordinate Geometry
Exercise 26(A)
Question 8
Chapter 26- Co-ordinate Geometry | Exercise 26(A)
Question 8
CHAPTERS
1. Chapter 1- Rational and Irrational Numbers
2. Chapter 2- Compound Interest [Without Using Formula
3. Chapter 3- Compound Interest [Using Formula
6. Chapter 6- Simultaneous Equations
7. Chapter 7- Indices [exponents]
9. Chapter 9- Triangles [Congruency in Triangles]
10. Chapter 10- Isosceles Triangle
12. Chapter 12- Mid-Point and Its Converse
13. Chapter 13- Pythagoras Theorem
14. Chapter 14- Rectilinear Figures
15. Chapter 15- Construction of Polygons
19. Chapter 19- Mean and Median
20. Chapter 20- Area and Perimeter of Plane Figures
22. Chapter 22- Trigonometrical Ratios
23. Chapter 23- Trigonometrical Ratios of Standard Angles
24. Chapter 24- Solution Of Right Triangles
25. Chapter 25- Complementary angles
26. Chapter 26- Co-ordinate Geometry
A (-2, 2), B (8, 2) and C (4, -4) are the vertices of a parallelogram ABCD. By plotting the given points on a graph paper; find the co-ordinates of the fourth vertex D.
Also, form the same graph, state the co-ordinates of the mid-points of the sides AB and CD
Given, A(2,-2), B(8,2) and C(4,-4) are the vertices of the parallelogram ABCD
Joining A, B, C, and D we get the parallelogram ABCD.
According to the graph, we get, D(-6,4)
From the graph,
The coordinates of the mid-point of AB is E(3,2)
The coordinates of the mid-point of CD is F(-1,-4)
Chapter 1- Rational and Irrational Numbers
Chapter 2- Compound Interest [Without Using Formula
Chapter 3- Compound Interest [Using Formula
Chapter 6- Simultaneous Equations
Chapter 7- Indices [exponents]
Chapter 9- Triangles [Congruency in Triangles]
Chapter 10- Isosceles Triangle
Chapter 12- Mid-Point and Its Converse
Chapter 13- Pythagoras Theorem
Chapter 14- Rectilinear Figures
Chapter 15- Construction of Polygons
Chapter 20- Area and Perimeter of Plane Figures
Chapter 22- Trigonometrical Ratios
Chapter 23- Trigonometrical Ratios of Standard Angles
Chapter 24- Solution Of Right Triangles
Chapter 25- Complementary angles
Chapter 26- Co-ordinate Geometry
Question 8
A (-2, 2), B (8, 2) and C (4, -4) are the vertices of a parallelogram ABCD. By plotting the given points on a graph paper; find the co-ordinates of the fourth vertex D.
Also, form the same graph, state the co-ordinates of the mid-points of the sides AB and CD
Given, A(2,-2), B(8,2) and C(4,-4) are the vertices of the parallelogram ABCD
Joining A, B, C, and D we get the parallelogram ABCD.
According to the graph, we get, D(-6,4)
From the graph,
The coordinates of the mid-point of AB is E(3,2)
The coordinates of the mid-point of CD is F(-1,-4)
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