Introduction

Worldwide presence In geometry there are two terms that are often confused with each other: concave and convex. At first glance, convex and concave objects may appear very similar, but they actually have different characteristics that differentiate them. In this article we will explore in depth the differences between these two terms.

What is convex?

Let's start by defining what a convex object is. A convex object is one that has all the corners facing outward, that is, it does not have concave or inward edges. You can easily identify a convex object if you can join any pair of points inside the object with a straight line that does not leave the object at any time.

Examples of convex objects

• A circle
• A cube
• a cone
• a sphere

What is concave?

Now, let's talk about concave objects. A concave object is one that has at least one corner facing inward, that is, it has edges that are curved or concave inward. If you try to join two points inside the object with a straight line, this line will go out of the object and back in.

Examples of concave objects

• A funnel
• a deep bowl
• a saddle
• A pair of curved scissors

What is the difference?

The main difference between convex and concave objects is the way light reflects off them. In a convex object, light will always be reflected outwards, which means that The object will always be visible from any angle. On the other hand, in a concave object, light will reflect inward, which can do make the object appear less visible from certain angles.

Summary

In short, convex objects have all their corners facing outward, while concave objects have at least one corner facing inward. The main difference between these two terms is the way light reflects off them and how that affects their visibility. We hope this article has helped clarify the differences between these two terms and allowed you to better understand geometry.

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