Question

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

• A. rhombus
• B. square
• C. rectangle
• D. none of these

Answer 1

The correct option is A

rhombus

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.