Surface Area of a Cuboid

The video tutorial explains how to calculate the surface area of a cuboid. It begins by introducing the dimensions of the cuboid: width of 4 cm, length of 5 cm, and height of 8 cm. The tutorial then details the process of finding the area of the front, side, and top rectangles, noting that these areas are the same as the back, opposite side, and bottom rectangles. By calculating the area of each rectangle and summing them, the tutorial demonstrates how to double the sum to account for all six sides of the cuboid, resulting in a total surface area of 184 cm squared.

What are the dimensions of the cuboid used in the example?

• Width: 8 cm, Length: 5 cm, Height: 4 cm

• Width: 5 cm, Length: 4 cm, Height: 8 cm

• Width: 4 cm, Length: 5 cm, Height: 8 cm

• Width: 4 cm, Length: 8 cm, Height: 5 cm

How do you calculate the surface area of a cuboid?

• Find the area of one rectangle and multiply by six

• Find the area of four rectangles and add them

• Find the area of three rectangles and double the sum

• Find the area of two rectangles and triple the sum

What is the area of the front rectangle of the cuboid?

• 50 cm squared

• 40 cm squared

• 20 cm squared

• 32 cm squared

Which dimensions are used to calculate the area of the front rectangle?

• Width and Length

• Height and Length

• Length and Height

• Width and Height

What is the area of the side rectangle of the cuboid?

• 20 cm squared

• 32 cm squared

• 40 cm squared

• 50 cm squared

Which dimensions are used to calculate the area of the side rectangle?

• Height and Length

• Width and Height

• Length and Height

• Width and Length

What is the area of the top rectangle of the cuboid?

• 20 cm squared

• 32 cm squared

• 40 cm squared

• 50 cm squared

Which dimensions are used to calculate the area of the top rectangle?

• Width and Height

• Width and Length

• Length and Height

• Height and Length

What is the sum of the areas of the front, side, and top rectangles?

• 92 cm squared

• 110 cm squared

• 100 cm squared

• 80 cm squared

What is the total surface area of the cuboid after doubling the sum of the three rectangles?

• 150 cm squared

• 200 cm squared

• 160 cm squared

• 184 cm squared