Understanding the Surface Area of a Cone

What does the capital B represent in the formula for the surface area of a cone?

• The height of the cone

• The slant height of the cone

• The volume of the cone

• The area of the base

Which part of the formula pi r squared is used to calculate?

• The height of the cone

• The area of the circular base

• The volume of the cone

• The lateral area of the cone

What is the abbreviated value of pi often used in calculations?

• 3.13

• 3.14

• 3.15

• 3.16

In the example, what is the radius of the cone's base?

• 7 cm

• 4 cm

• 6 cm

• 5 cm

What is the total surface area of the cone calculated in the example?

• 138.23 cm²

• 145.67 cm²

• 150.45 cm²

• 120.56 cm²