English

Each of the Points a (3, 0), B (7, 0), C (- 8, 0), D (- 7, 0) and E (0, 0) is Reflected in X-axis to Points A’, B’, C’, D’ and E’ Respectively. Write the Co-ordinates - Mathematics

Advertisements
Advertisements

Question

Each of the points A (3, 0), B (7, 0), C (- 8, 0), D (- 7, 0) and E (0, 0) is reflected in x-axis to points A’, B’, C’, D’ and E’ respectively. Write the co-ordinates of each of the image points A’, B’, C’, D’ and E’.

Graph
Advertisements

Solution

The points are given :
A (3, 0), B (1, 0), C (-8, 0), D (- 7, 0) and E (0, 0)

This images will be when reflected in x-axis. A’ (3, 0), B’ (7, 0), C’ (- 8, 0) D’ (- 7, 0) and E’ (0, 0) as the given points lie on x-axis.

shaalaa.com
  Is there an error in this question or solution?
Chapter 17: Symmetry (Including Reflection and Rotation) - Exercise 17 (B)

APPEARS IN

Selina Concise Mathematics [English] Class 7 ICSE
Chapter 17 Symmetry (Including Reflection and Rotation)
Exercise 17 (B) | Q 7

RELATED QUESTIONS

Complete the following table:

Point Reflection in
x-axis y-axis origin
(i) (8, 2)      
(ii) (5, 6)      
(iii) (4, −5)      
(iv) (6, −2)      
(v) (−3, 7)      
(vi) (−4, 5)      
(vii) (−2, −7)      
(viii) (−6, −3)      
(ix) (4, 0)      
(x) (−7, 0)      
(xi) (0, −6)      
(xii) (0, 7)      
(xiii) (0, 0)      

A point P (7,3) is reflected in the x-axis to point P’. The point P’ is further reflected in v-axis to point P” Find :
(i) the coordinates of P’
(ii) the co-ordinates of P”
(iii) the image of P (7, 3) in origin.


Mark points A (– 6, 5) and B (– 4, – 6) on a graph paper. Find A’, the image of A in origin and B’, the image of B in origin. Mark A’ and B’ also on the same graph paper. Join AB and A’ B’. Is AB = A’ B’?


Examine the following figure carefully, draw line(s) of symmetry in whichever figure possible:


Examine the following figure carefully, draw line(s) of symmetry in whichever figure possible:


Mark two points A and B 5.5 cm apart. Draw a line PQ so that A and B are symmetric with respect to the line PQ. Give a special name to line PQ.


Does your windmill look the same on `1/4` of the turn?


Does the fan look the same on the `1/4` turn?


In each figure alongside, a letter of the alphabet is shown along with a vertical line. Take the mirror image of the letter in the given line. Find which letters look the same after reflection (i.e. which letters look the same in the image) and which do not. Can you guess why?

Try for O E M N P H L T S V X


Mirror reflection leads to symmetry always.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×