Ex.14.1 Q8 Symmetry - NCERT Maths Class 7

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Question

What letters of the English alphabet have reflectional symmetry (i.e., symmetry related to mirror reflection) about.

(a) vertical mirror

(b) a horizontal mirror

(c) both horizontal and vertical mirrors.

 Video Solution
Symmetry
Ex 14.1 | Question 8

Text Solution

What is known:

English alphabets.

What is unknown?

Letters of the English alphabet that have reflectional symmetry

Reasoning:

In this question you have to find out letters of the English alphabet have reflectional symmetry. In reflectional symmetry one half is the reflection of the other half. That is, a figure which does not change upon undergoing a reflection has reflectional symmetry. Remember this concept and find out the letters of English alphabets with reflectional symmetry.

Steps:

(a)  A,H,I,M,O,T,U,V,W,X,Y

(b)  B,C,D,E,H,I,O,X

(c)  O,X,I,H

  
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