Question

Number of equilateral triangles in a regular polygon

Answer 1

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Equilateral triangle = 60 °

Now,

If

5 × 60

=) 300

It is not equal to 360°.

Hence,

It can have five triangles, there are few chances that it is Equilateral. If it's not Equilateral then it can be isosceles triangle.

So mate,

YOUR ANSWER =) 5 TRIANGLES.

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THANKS

☺☺☺

Answer 2

If there is a regular polygon then it must be a Quadrilateral.

To make an Equilateral triangle we need each angle = 60°

So,

=> Sum of all angles of Quadrilateral = (n-2)180° = (4-2)180° = 360°

Now,

No. of Equilateral triangle = Angle of Equilateral triangle x Side of Polygon

=> No. = 60° x 4 = 240°

So it has 4 Equilateral Triangle.