Video Transcript
Select the net of this shape.
In this question, we’re shown a
picture of a 3D shape. It’s solid. Perhaps you know the name of this
shape, but it doesn’t matter; it’s not gonna help us answer the question because
what we’re being asked to do is find or select the net of this shape. Now we know that the net of a 3D
shape is what that shape might look like if it was opened out and flattened. And underneath the picture of the
shape, we can see several nets. If we were to cut each one out of
paper to fold it, it would make a shape, but only one of them would make the shape
that we can see in our picture.
To help us find the right net, we
can look for clues in this picture. What can we tell about this 3D
shape? Probably the most important thing
when we think about nets is to look at the faces of a 3D shape. Don’t forget the faces of a 3D
shape are the flat surfaces that make it up. And if we look carefully at this
particular 3D shape, we can see something interesting about the faces. They’re all squares, aren’t
they? Now if we take a moment and look at
the different nets that we have as possible answers, perhaps we can see which one is
correct already. Some of the nets are made out of
rectangles, and some contain triangles. But there’s only one that’s made up
just out of squares.
To check our answer, we could count
the number of faces. There’s one on the top, one on the
bottom, and then four round the sides. So that’s six faces altogether. And if we look at the net we’ve
chosen, we can see that it is made out of six squares. Each one is going to become a
square face when we fold them into the shape. Our shape has six square faces. So the correct net that’s going to
make this shape is the one made out of six squares.
