You are going to start this lesson with what are polyhedrons.
8
8
8
Question 5
5.
Click and drag the "Rotate 1", Rotate 2" and "Height". Use the move tool to move around the shape. Describe below how many cross-sections you've see. Name the shapes you've created
Having trouble seeing the link? Click here
8
Question 6
6.
Describe the shape formed by the intersection of the plane and the solid.
8
8
Question 9
9.
What happens when you rotate a triangle around the y-axis?
Click the play button to see what happens
Having trouble seeing the link? Click here
We call this solid of revolution. This is a three-dimensional figure that is formed by rotating a two-dimensional shape around an axis. The line around which the shape is rotated is called the axis of revolution.
8
Question 10
10.
What shape is create when you rotate a triangle
8
8
We're moving along to 3D Solids! Drag the word on the left to match the picture on the right.
Rectangular Prism
Cone
Sphere
Triangular Pyramid
Cylinder
Triangular Prism
Question 2
2.
Question 3
3.
Question 4
4.
Question 7
7.
Describe the shape formed by the intersection of the plane and the solid.
Question 8
8.
Describe the shape formed by the intersection of the plane and the solid.
Question 11
11.
What do you get when you rotate a square?
Question 12
12.
What do you get when you rotate a semi-circle?
Tell whether the solid is a polyhedron. Name the polyhedron.
Yes, Square Prism
No, Square Prism
Yes, Square Pyramid
No, Square Pyramid
Tell whether the solid is a polhedron. Name the polyhedron
No, half a cylinder
Yes, half a cylinder
No, hemisphere
Yes, Sphere
Tell whether the solid is a polhedron. Name the polyhedron
