Question

the game of triominoes has equilateral - triangular playing pieces with numbers at each vertex as shown. if two pieces are placed together as shown in the figure furthest to the right, explain what type of quadrilateral is formed.
complete the sentence below.
the figure is a dropdown because dropdown
options: rhombus, rectangle, square

Explanation:

Step1: Recall properties of quadrilaterals

An equilateral - triangular playing piece has all sides equal. When two such pieces are joined, the resulting quadrilateral has all four sides equal.

Step2: Match with quadrilateral definitions

A rhombus is defined as a quadrilateral with all four sides equal. A rectangle has four right - angles (not given here) and a square has four right - angles and all four sides equal (right - angles not given here).

Answer:

The figure is a rhombus because it has four equal sides.