Solving mathematical and real-world problems involving surface area of cones

How do you find the lateral surface area of a cone?

•  $\pi rl$  

•  $\pi rl+\pi r^2$  

•  $\frac{1}{2}Pl$ 

•  $\frac{1}{2}Pl+B$ 

What is surface area? Round to the nearest hundredth. Use 3.14 for π.

• 1339.73

• 1003.36

• 320.78

• 742.04

A paper party hat, like the one shown, has a slant height of 6 inches, and a radius of 3 inches. How many square inches of cardboard is needed to create the hat? (Hint: Find surface area)

• 56.4in²

• 84.8in²

• 28.3in²

• 182.9in²

Find the Lateral Area

• 12.56m²
• 25.12m²
• 37.68m²
• None of the Above

What is surface area?

• 1339.73

• 703.36

• 320.78

• 742.42

Tags

8.6.a

Find the lateral area of the cone.

• 67.3

• 94.7

• 82.87

• 84.78

What is surface area?

• 1339.73
• 703.36
• 320.78
• 742.04

Find the surface area of the cone.

• 22,25in

• 46.7in

• 21.98in

• 13.4in

Find the Lateral Area of the given figure. Round to the nearest hundredth

• 477.52m²

• 427.26m²

• 578.05m²

• 628.32m²

Find the total surface area of the cone. Don't forget to divide the diameter by 2 to find the radius. Round to the nearest tenth.

• 1158.5 sq. m

• 1287.2 sq. m

• 1007.9 sq. m

• 1462 sq. m