3-D: It’s Not Just For Movies

Admin Posts : 90 Join date : 2020-05-08

3-D: It’s Not Just For Movies

You may have heard of 3-D movies. You may have even seen one. The D in 3-D stands for dimensional.

A dimension is a direction that something can be measured. Flat things can be measured in two ways. They can be measured by length and by width. That’s why ﬂat things are sometimes called 2-D or two-dimensional. Three dimensional things can be measured in three ways. They can be measured by length and width like ﬂat things. They can also be measured by their height. Height is what lets them come up off the paper or the screen. Three-dimensional shapes in math are called solids. Let’s look at some of the most common solids.

A cube has six square sides. The sides are called faces. A rectangular prism has six sides that are all shaped like rectangles. A sphere is shaped like Earth. It is also like a playground ball. A square pyramid has a square on the bottom, and four triangle-shaped sides.

Answer the following questions based on the reading passage. Don’t forget to go back to the passage whenever necessary to ﬁnd or conﬁrm your answers.

1) What is a dimension?
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2) How can ﬂat, two-dimensional things be measured?

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3) What are three-dimensional shapes called in math

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4) What shape are the sides of a cube?

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5) What does a sphere look like?

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Guest

1_ A dimension is a direction that something can be measured.
2_ Flat things can be measured in two ways. They can be measured by length and by width.
3_Three-dimensional shapes in math are called solids.
4_ The sides of a cube shape are square.
5_ A sphere looks like earth.

Guest

The direction can measure things

Guest

Wedth and length

Guest

Is called solids

Guest

Square
Like Earth

Guest

Is a direction that something can be measured

Guest

They can be measured by length and width

Guest

1-The dimension is a direction that something can be measured
2-They can be measured by length and width
3-called solids
4-square
5-look like earth

Guest

A dimension is a direction that can be measured

Guest

Question 1
A dimension is a direction that something can be measured
Question 2
They can be measured by length and by width
Question 3
Solids
Question 4
square sides
Question 5
A sphere shaped like earth

Guest

1 ) a dimension is a direction that something can be measured .

2 ) They can be measured by length and by width .

3 ) Three-dimensional shapes are called in math solid .

4 ) square .

5 ) A sphere looks like an Earth .