Find the perimeter of an equilateral triangle whose side is x unit.
A
2x
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B
2x+y
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C
4x
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D
3x
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Solution
The correct option is D 3x Option D) 3x
An equilateral triangle, is a triangle in which all the sides are of equal measure.
Triangle has 3 sides
Let each side be x units
Perimeter of an equilateral triangle = 3x