S.chand publication New Learning Composite mathematics solution of class 7 Chapter 12 Reflection and Rotation Symmetry Exercise 12A

 Exercise 12A

Question 1

Examine the following shapes and tell which of these have a line or lines of symmetry and which do not have any line of symmetry

(a) Yes

(b) No

(c) Yes

(d) Yes

(e) Yes

(f) No

(g) Yes

(h) Yes

(i) Yes

(j) Yes

(k) No

(l) Yes

Question 2

Draw the line of symmetry in each of the following figures

(a) Figure to be added

(b) Figure to be added

(c) Figure to be added

(d)  Figure to be added

(e)  Figure to be added

(f) Figure to be added

(g)  Figure to be added

(h)  Figure to be added

(i)  Figure to be added

(j)  Figure to be added

Question 5

Reflect the shapes given below in the given below in the mirror line and draw the images 

(a) Figure to be added

(b) Figure to be added

(c) Figure to be added

(d)  Figure to be added

(e)  Figure to be added

Question 6

Which letters in the alphabet can be horizontally reflected and still look the same ? Which letters can be vertically reflected and still look the same ?

Horizontally : A,H,I,M,O,T,U,V,W,X,Y

Vertically : B,C,D,E,H,I,K,O,X

Question 7

Describe a horizontal reflection of the word MOM. Can you think of any other words that would have a similar horizontal reflection ?

Ans : The word MOM will look exactly the same if it is a horizontal reflection left or right

Other possible words WOW, HAH