Question

which of the following is an example of a concrete concept?
triangle
fruit
workplace
vehicle

Explanation:

A concrete concept refers to something that can be perceived by the senses. A triangle is a geometric shape that can be visualized and drawn, making it a concrete concept. Fruit is a general category, workplace is an abstract idea of a location for work, and vehicle is a general term for means of transportation, all of which are more abstract compared to a specific geometric shape like a triangle.

Answer:

Triangle