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Q.

How many lines of symmetry are there in a scalene triangle?


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a

0

b

1

c

2

d

3 

answer is A.

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Detailed Solution

We have given a scalene triangle.
We know that a line of symmetry could be a line that cuts a shape exactly in half.
A triangle in which all the three sides are of different lengths and also, all the angles are of different measures is called a scalene triangle.
Therefore, the scalene triangle hasn’t any lines of symmetry.
Hence option (1) is correct.
 
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