Surface Area of Rectangular Prisms

The video tutorial explains how to calculate the surface area of composite figures, specifically focusing on rectangular prisms. It begins with an introduction to composite figures and the formula for finding the surface area of rectangular prisms. The tutorial then provides a step-by-step guide to calculating the surface area of two rectangular prisms, followed by adjustments needed for composite figures by subtracting hidden areas. The video concludes with the final surface area calculation for the composite figure.

What is a composite figure?

• A figure that is always a cube

• A figure made up of multiple shapes

• A figure that is always a pyramid

• A figure made up of a single shape

What type of shapes are discussed in the video?

• Pyramids

• Spheres

• Cylinders

• Rectangular prisms

Which formula is used to find the surface area of a rectangular prism?

• length × width × height

• 2 × (length + width + height)

• 2 × (height × length + length × width + height × width)

• height × length × width

What are the dimensions used in the example for the top rectangular prism?

• 6, 3, and 8

• 12, 8, and 2

• 5, 5, and 5

• 10, 10, and 10

What is the surface area of the top rectangular prism before doubling?

• 60 cm²

• 90 cm²

• 180 cm²

• 45 cm²

What is the final surface area of the top rectangular prism after doubling?

• 270 cm²

• 180 cm²

• 90 cm²

• 360 cm²

What is the first step in calculating the surface area of a rectangular prism?

• Add all dimensions

• Multiply each pair of dimensions

• Subtract overlapping areas

• Double the total area

What is the significance of the dimensions 6, 3, and 8 in the video?

• They are the dimensions of the bottom prism

• They are the dimensions of the top prism

• They are the dimensions of a cube

• They are the dimensions of a pyramid

What is the result of multiplying 6 by 3 in the context of the video?

• 36

• 48

• 24

• 18

What are the dimensions used in the example for the bottom rectangular prism?

• 12, 8, and 2

• 6, 3, and 8

• 5, 5, and 5

• 10, 10, and 10