1. Three-dimensional figures, or solids, can be made up of flat or curved surfaces. Each flat surface is called a face. An edge is the segment that is the intersection of two faces. A vertex is the point that is the intersection of three or more faces.

3. A cube is a prism with six square faces
A cube is a prism with six square faces. Other prisms and pyramids are named for the shape of their bases.

4. A Net is a 2D representation of a 3D solid
A Net is a 2D representation of a 3D solid. Imagine “unfolding” the solid so you can see all surfaces!

5. A Cross section is the 2D shape describing the surface when a solid is cut into

7. Calculate the volume of each solid
Calculate the volume of each solid. Round to the nearest tenth if necessary.
H =14 cm
H =15 ft

8. Calculate the volume of each solid
Calculate the volume of each solid. Round to the nearest tenth if necessary.

9. Without Pictures
Find the diameter of a sphere with volume 36,000 cm3.
Find the surface area of a sphere with diameter 76 cm. Give your answers in terms of .
Find the volume of a sphere with surface area 324 in2. Give your answers in terms of .

10. Surface Area: calculate the area of the surfaces and add
Surface Area: calculate the area of the surfaces and add. Make sure you don’t add interior faces of composite figures!