Surface Area of Rectangular Prisms

This video tutorial covers the calculation of surface area for 3D figures, focusing on composite figures and missing sections. It begins with an introduction to the learning goals and a review of surface area formulas for rectangular prisms. The tutorial then progresses to more complex calculations involving missing sections and composite shapes, providing step-by-step guidance. The video concludes with a reflection on the learning process and encourages students to explore further questions.

What is the primary learning goal of this lesson on surface area?

• To calculate the surface area of composite figures

• To learn about the history of geometry

• To understand the concept of perimeter

• To calculate the volume of 3D figures

Which of the following is NOT a method to find the surface area of a rectangular prism?

• Using the surface area formula

• Calculating the area of each rectangle on the surface

• Measuring the volume of the prism

• Adding the areas of all the rectangles

What is the significance of using inches squared in surface area calculations?

• It measures the weight

• It measures the space inside a flat 2D part of a 3D shape

• It measures the length

• It measures the volume

When a piece is removed from a rectangular prism, what is the first step in finding the surface area of the remaining shape?

• Add the areas of the removed and remaining pieces

• Calculate the volume of the removed piece

• Find the surface area of the remaining shape

• Ignore the removed piece

What is the surface area of the simpler piece after a section is removed from the rectangular prism?

• 72 square inches

• 90 square inches

• 108 square inches

• 234 square inches

How do you calculate the surface area of a rectangular prism with a piece removed?

• By ignoring the removed piece

• By finding the area of the whole shape and subtracting the removed piece

• By adding the areas of the removed and remaining pieces

• By calculating the volume of the remaining shape

In the complex piece with a chunk missing, what is the area of the top and bottom after subtraction?

• 108 square inches

• 90 square inches

• 234 square inches

• 72 square inches

What is the total surface area of the complex piece with a chunk missing?

• 72 square inches

• 234 square inches

• 108 square inches

• 90 square inches

What should you do if you have questions about finding the surface area of shapes?

• Forget about them

• Ignore them

• Ask only your teacher

• Write them down and seek answers

What is the benefit of learning from your failures according to the video?

• You will understand everything immediately

• You will become a teacher

• You have succeeded

• You will never fail again