Area, Surface Area, and Volume of 3D Shapes

When calculating the volume of the figure, to find the area of the base you should use...

• bh

• 2πr

• πr²

• r²

What is the surface area formula for a cylinder?

•  πrh + πr²

• = 2πrh + 2πr²

• = 4πr²

•  πr²

Campbell Soup is creating a new soup label. If a can has a height of 6 in and a diameter of 4 in, how much material does Campbell need for each soup label? 

Is this looking for Lateral or Total surface area?

• Lateral

• Total

Campbell Soup is creating a new soup label. If a can has a height of 6 in and a diameter of 4 in, how much material does Campbell need for each soup label? Which formula can be used to find the surface area of the label?

• SA=2πrh+2r²

• SA=2πrh

• SA=Ph+2B

• V=Bh

The top of the box below has been removed.What is the surface area of the remaining box?

• 560 cm²

• 800 cm²

• 1,200 cm²

• 400 cm²

The top of the box below has been removed.What is the surface area of the remaining box? 

• 560 cm²

• 800 cm²

• 1,200 cm²

Find the total surface area of the net.

• 27.6

• 82.8

• 110.4

• 220.8

Is surface area.......

• Filling in a 3 dimensional shape

• wrapping the outside of a 3 dimensional shape

• 38

• 10

• 20

• 11.8

• 42

• 28

• 29.6

• 18

Answer explanation

This is a triangular prism, the base is a triangle, not the rectangle!

Area of the triangle is bh/2 so 2(2)/2=2, Perimeter of the base is the distance around the triangle, 2+2+2.8 = 6.8, and height is the distance between the two bases, 5. So,

SA = 2B + Ph

SA = 2(2)+6.8(5)

SA = 38

V = Bh

V = 2(5)

V = 10

Find the Surface area of the shape below?

• 258 m²

• 268 m²

• 248 m²

• 278 m²