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Q.

How many lines of symmetry are there in an equilateral triangle?


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a

1

b

2

c

3

d

4 

answer is C.

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Detailed Solution

We have been given an equilateral triangle.
Question ImageAn equilateral triangle is symmetrical about each one of the bisectors of its interior angle. Also, it has three bisectors.
Question ImageTherefore, an equilateral triangle has three lines of symmetry.
Hence, option (3) is the correct option.
 
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