# All About 3D Shapes - What is a Cone?

3D shapes are objects that have three dimensions: length, width, and height. Learning 3D shapes could help kids improve their visual-spatial skills, which is crucial in many academic and professional fields, such as mathematics, science, computer technology, and so on. Kids are expected to identify and describe 3D shapes in kindergarten. They should be able to sort, describe and name 3D objects in grade 1. And they should be able to describe the features of 3D objects in grade 2. The most common 3D shapes include spheres, cylinders, cubes, and cones. A cone is a 3-dimensional shape that tapers smoothly from a flat base to a single point, which is called the apex.
This worksheet provides basic information about cones. A cone is a 3-dimensional shape that is pointy at the top and flat at the bottom. The bottom of a cone is frequently a circle. A cone contains a flat surface and a curved surface. The total surface area of a cone is the sum of the area of the flat and curved surface. An interesting fact to know is that a cone can be made by rotating a triangle around its centerline. When viewed from aside, a cone looks like a triangle. Cones can be seen in many things in our daily life, such as Christmas trees, pines, traffic cones, Birthday hats, ice cream cones, cocktail glasses, funnels, and carrots. This worksheet will be very useful to help kids improve their geometry knowledge about cones.

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