SA & Volume of Cones, Cylinders, and Spheres Explained

This video tutorial covers the concepts of surface area and volume, focusing on three shapes: cylinders, cones, and spheres. It begins with definitions of volume, lateral surface area, and total surface area, followed by general formulas for calculating these measurements. The tutorial then provides detailed calculations for each shape, including examples and step-by-step instructions. The video emphasizes understanding the differences between lateral and total surface area and the use of specific formulas for each geometric shape.

What does the volume of an object represent?

• The sum of the areas of the lateral sides

• The amount of space an object occupies

• The perimeter of the object's base

• The surface area of an object

Which of the following is not included in the lateral surface area of an object?

• Both the base and the top

• The base

• The top

• The sides

What does the 'B' represent in the formulas for volume and surface area?

• The perimeter of the base

• The radius of the base

• The diameter of the base

• The area of the base

What is the formula for the volume of a cylinder?

• 2πrh + 2πr²

• 2πr + h

• πr²h

• πr² + 2πrh

How do you calculate the lateral surface area of a cylinder?

• 2πrh + 2πr²

• πr²h

• 2πrh

• 2πr + h

What is the significance of the slant height in a cone?

• It is the height from the base to the tip of the cone.

• It represents the radius of the base.

• It is used in calculating the lateral surface area of the cone.

• It is used to calculate the volume of the cone.

What formula represents the total surface area of a cone?

• πr²h

• πr(h + s)

• 2πr² + πrs

• πrs + πr²

In the context of a cone, what does the 's' variable represent?

• The surface area of the base

• The slant height of the cone

• The sum of the base's perimeter

• The sphere's radius

How is the volume of a sphere calculated?

• πr²h

• 4/3πr³

• 4πr²

• 2πr³

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

• 4/3πr²

• πr³

• 4πr²

• 2πr²