Question

A rhombus that is a rectangle is called a ____.

• A. Circle
• B. Triangle
• C. Trapezium
• D. Square

Answer 1

The correct option is D Square

A rhombus is a quadrilateral whose all four sides are equal. If its all four angles are 90${}^{\circ }$, then it can be called a rectangle as its opposite sides are equal and all angles are 90${}^{\circ }$. Now, this rhombus also exhibits properties of a square i.e. its sides are equal and all angles are 90${}^{\circ }$. Therefore, a rhombus that is a rectangle is called a square.