NCERT Solutions for Class 9 Maths Chapter 6 Coordinate Geometry Ex 6.1 are part of NCERT Solutions for Class 9 Maths. Here we have given NCERT Solutions for Class 9 Maths Chapter 6 Coordinate Geometry Ex 6.1.
| Board | CBSE |
| Textbook | NCERT |
| Class | Class 9 |
| Subject | Maths |
| Chapter | Chapter 6 |
| Chapter Name | Coordinate Geometry |
| Exercise | Ex 6.1 |
| Number of Questions Solved | 2 |
| Category | NCERT Solutions |
NCERT Solutions for Class 9 Maths Chapter 6 Coordinate Geometry Ex 6.1
Question 1.
How will you describe the position of a table lamp on your study table to another person?
Solution:
Let us consider the lamp as a point A and table as a plane.
Take any two perpendicular edges of the table, say OX and OY. Measure the distance of the lamp A from the larger edge OX, let it be 25 cm. Again, measure the distance of the lamp A from the shorter edge OY, let it be 15 cm. Therefore, the position of the lamp A to the edges OX and OY is (15, 25).
Question 2.
(Street Plan) A city has two main roads which cross each other at the centre of the city. These two roads are along the North-South direction and East-West direction. All the other streets of the city run parallel to these roads and are 200 m apart. There are 5 streets in each direction. Using 1 cm = 200 m, draw a model of the city on your notebook. Represent the roads/streets by single lines.
There are many cross-streets in your model. A particular cross-street is made by two street one running in the North-South direction and another in the East-West direction. Each cross-street is referred to in the following manner : If the 2 nd street running in the North-South direction and 5th in the East-West direction meet at some crossing, then we will call this cross-street (2, 5). Using this convention, find
(i) how many cross-streets can be referred to as (4, 3).
(ii) how many cross-streets can be referred to as (3, 4).
Solution:
(i) The street plan is shown by the following figure.
(i) There is only one cros.s-street which can be referred as (4, 3).
(ii) There is only one cross-street which can be referred as (3, 4).
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