Surface Area and Surface Area and Volume ActivityVolume Activity

7th Grade Math

What formula would you use to find the surface area of a cylinder?

Answer: SA = 2rh + 2r2

What formula would you use to find the volume of a pyramid?

Answer: Volume = Bh

where B is the area of the base.

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What formula would you use to find the circumference of a circle?

Answer: C = 2r or C = d

Find the area of the circle. Use 3.14 for .

Answer: The area of ⊙A is approximately 78.5 cm2.

Find the volume of the cylinder. Use 3.14 for .

Answer: The volume of the cylinder is about 1,004.8 cubic meters.

The dimensions of a shipping container are given. Find the surface area of the container.

Answer: The surface area of the shipping container is 52 square feet.

Natalya walked with her friend around a circular track. The radius of the track was 30 meters. Find the approximatedistance they walked when they went around the track TWICE. Use 3.14 for .

Answer: The distance around the track twice is about 376.8 meters.

Find the volume of the prism.

Answer: The volume of the prism is 68.4 cubic meters.

Find the surface area of the cylinder. Use 3.14 for .

Answer: The surface area of the cylinder is about 207.24 square inches..

Find the volume of the cone. Use 3.14 for .

Answer: The volume of the cone is about 200.96 cm3.

A small cake has a radius of 5 inches and is 3 inches tall. The cake is cut into fourequal-sized slices. What is the volume of one slice of cake? Use 3.14 for .

Answer: Each slice has a volume of about 58.875 cm3.