Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

C# C# Objects Inheritance Inheritance

Darya Zata
Darya Zata
2,562 Points

What is a Polygon?

I dont understand the question and the right answer, woud be nice someone can explain it, thank you!

Which of these code expressions evaluates to true?

A new Polygon(4) is Square B new Square(2.5) is Polygon

1 Answer

Steven Parker
Steven Parker
216,012 Points

Here's a few hints that may explain it:

  • an instance of a derived (or child) class is also a member of the class it inherits from
  • an instance of a parent class is not a member of a child class
  • "Square" inherits from "Polygon"