What is DIHEDRAL?

Dihedral is like having two flaps on a piece of paper that can move up and down together.

Imagine you're playing with a kite. The kite has two sides, the top one and the bottom one. When you fly the kite, these sides can bend in different ways. If they both go up at the same time, like when you pull the string harder, it’s like the dihedral is working, giving your kite more stability.

Now think of a book that's slightly opened on your table. The two pages are like the flaps, and the angle between them is what we call the dihedral angle. If you open the book more, the dihedral angle gets bigger; if you close it a bit, the angle gets smaller.

In real life, planes use this idea too! Their wings have a small upward angle, that’s their dihedral, and it helps them stay steady in the air, just like your kite stays up when you pull the string. So dihedral is all about how things can bend or open to help something stay balanced or move better.