If I combine 2 equilateral triangles along a side, what quadrilateral do I get?

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Question

If I combine 2 equilateral triangles along a side, what quadrilateral do I get?

Options:

A . Rhombus

B . Square

C . Rectangle

D . Parallelogram

Answer: Option A
:
A

If I combine 2 equilateral triangles, I get a quadrilateral with all sides equal. Since the angle of an equilateral triangle is $60^{\circ}$ , no sides will be perpendicular. The quadrilateral formed cannot be a square. Hence, it is a rhombus.

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