Surface Area

What is the surface area formula for a cone?

• SA = πrl + πr²

• SA = 2πrh + 2πr²

• SA = 4πr²

• SA = πr²

Calculate the surface area.

• 65π cm²

• 90π cm²

• 85π cm²

• 70π cm²

Find the surface area of a cone with a slant height of 10 and a radius of 6.

• 376.99

• 301.44

• 256.87

• 278.64

A paper party hat, like the one shown, has a slant height of 6 inches and a height of 5 inches. How many square feet of cardboard would be needed to create this hat?

• 62.5 in.²
• 10 in.²
• 50 in.²
• 22.5 in.²

What is the formula for the total surface area of a sphere?

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

Find the surface area of the sphere.

• 48π mm²

• 144π mm²

• 72π mm²

• 134π mm²

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

How do you find the total surface area of a cylinder?

• Ph

• Ph + 2B

Calculate the surface area of the given shape. Round to the nearest tenth.

Find the surface area of the rectangular prism.

• 140 in.²
• 83 in.²
• 166 in. ²
• 100 in.²

Tags

CCSS.7.G.B.6

Calculate the surface area.

• 12 m²

• 8 m²

• 24 m²

• 20 m²

Tags

CCSS.7.G.B.6