If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Course: Geometry (FL B.E.S.T.)>Unit 1

Lesson 2: Intro to Euclidean geometry

Geometric definitions example

Using precise language is important in geometry, as it allows for clear communication and understanding of geometric concepts. This video provides an interactive exercise that emphasizes the significance of accurate definitions, helping learners develop their mathematical communication skills and enhance their grasp of geometry.

Want to join the conversation?

• What is the shape of a point?
• In Euclidean geometry, a point is a primitive notion upon which geometry is built. Being a primitive notion means that a point cannot be defined in terms of previously defined objects. In particular, the geometric points do not have length, area, volume, or any other dimensional attribute. A common point is meant to capture the notion of a unique location in Euclidean space.
• Why is definitions important in geometry?
• The same reason they're important in any context: to make sure everyone is on the same page. If I'm trying to say "A right triangle inscribed in a circle will have a diameter as its hypotenuse.", then I want to know that everyone I'm talking to has the same idea of what circles, right triangles, diameters, and hypotenuses are. If they have different ideas, my point won't get across.
• Why do you need to pretend to be a teacher when you are a teacher :3
• Use a ven diagram to determine whether the argument is valid or not valid.
1. If an animal is a cat, then it makes a "meow" sound.
2. Tipper is a cat.
C. Then Tipper makes "meow"sound.
My question Is how do I construct the problem.
• I would draw a circle and label it "animal". Inside that I would draw another circle labeled "cat". I would also write "meow" next to "cat" because all cats meow. Next I would either draw another circle or just label a point called "Tipper" inside the cat circle because Tipper is a cat. Since Tipper is inside the cat circle along with the meow description, Tipper meows.
• Can someone explain intersecting parallel lines?
(1 vote)
• Where do you hear that in the video? This is an incorrect statement because parallel lines cannot intersect by definition.
• what is the shape of a point
• A point has no shape. It has length, width, and height of 0. It cannot be broken down into smaller parts, because there are no smaller parts.
• Is it possible to mathematicaly calculate the area of an oval?
If yes,how?
Is there a special formula for that?
• An oval is not a defined shape in mathematics. If you mean an ellipse the formula is A=abπ where a and b are the lengths of the two axes. If you mean a closed curve on a plane that has only one axis of symmetry, then that requires calculus to compute and is well above this level of study.
• What is this 😭😭😭mobymax doesnt even include this i might as well go back to 9th grade i have no clue what this is i am supposed to go to 10th grade but i dont know this