Surface Area of Spheres, Cylinders, Cones

Find the surface area of the sphere. Use 3.14 for π and round your answer to the nearest tenth, if necessary.

• The correct answer for the surface area of the sphere is 1808.6 square units.

• The surface area of the sphere is 157.0 square units.

• The surface area of the sphere is 628.0 square units.

• The surface area of the sphere is 78.5 square units.

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Find the surface area of the cylinder. Use 3.14 for π and round your answer to the nearest tenth, if necessary.

• 103.8 square inches

• 36.75 square inches

• 415.2 square inches

• 549.5 square inches

Find the surface area of the cone. Use 3.14 for π and round your answer to the nearest tenth, if necessary.

(a)  

The surface area of this figure is 967.12 yd². Find the height. Use 3.14 for π.

• The height of the figure is 5.5 yards.

• The height of the figure is 15.0 yards.

• The height of the figure is 8.0 yards.

• The height of the figure is 6.5 yards.

The surface area of this figure is 1243.44ft². Find the slant height.

• The slant height is approximately 25.0 ft.

• The slant height is approximately 15.5 ft.

• The slant height is approximately 20.02 ft.

• The slant height is approximately 30.0 ft.

The surface area of this figure is 907.46 in². Find the diameter.

• The diameter is 10 inches.

• The diameter is 30 inches.

• The diameter is 17 inches.

• The diameter is 25 inches.

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Find the surface area of a sphere that has a diameter of 25 m. Use 3.14 for π.

• 785 m^2

• 1256 m^2

• 314 m^2

• 1962.5 m^2

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Ernie wants to make several cans like the one below. He is going to cut them from a sheet of metal that has an area of 2,826in². How many can he make? Use 3.14 for π.

• Ernie can make 20 cans.

• Ernie can make 8 cans.

• Ernie can make 10 cans.

• Ernie can make 9 cans.

Find the surface area.

• 6658.56 mm²

• 452.16 mm²

• 904.32 mm²

• 108.8 mm²

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Find the surface area of the cone. Leave your answer in terms of pi.

• 12π m²

• 16π m²

• 24π m²

• 8π m²