Cross Sections, Volume, and Surface Area

What shape will the horizontal cross-section of a sphere be?

• Dome

• Circle

• Ellipse

• Rectangle

Find the volume of the rectangular pyramid:

length = 12 cm

width = 12 cm

height = 8 cm

• 1152 cm³

• 11.52 cm³

• 384 cm³

• 3.84 cm³

Find the volume of the cone. Use 3.14 for π. Round decimal answers to the nearest tenth. radius = 4 in height = 14 in

• 234.6 in³

• 175.8 in³

• 23.5 in³

• 17.6 in³

Find the volume of the cone.  Use 3.14 for π.  Round decimal answers to the nearest tenth.
radius = 6 in
height = 15 in

• 1695.6 in³

• 169.6 in³

• 56.5 in³

• 565.2 in³

Find the total surface area of the prism.

• 48 square inches

• 64 square inches

• 88 square inches

• 76 square inches

What is surface area?

• The number of vertices on a polyhedron.

• The sum of the areas of all the faces.

• The sum of all the edge lengths.

• The amount of space inside a polyhedron.

What is surface area?

• Inside of the object

• the sum of all the areas of all the shapes that cover the surface of the object.

• Something Coach G made up?

• Surface area is what you get when you boil unicorn tears. 

When finding Surface Area, what are you solving for?

• Tells us the capacity of the figure.  It is a measure of how much a figure can hold and is measured in cubic units.

• The area of such an outer part or uppermost layer.

For a sphere with a radius of 8, what is the Surface Area?

• 803.84

• 10096.2304

• 2143.573

• 100.48

Find the surface area of the sphere, given diameter is 10.

• 314.16 in²

• 314 in²

• 166.67 in²

• 521.24 in²