Surface Area of Prisms with Holes

This lesson focuses on calculating the surface area of a right rectangular prism with two square holes, using a cinder block as an analogy. The process involves calculating the areas of the top, bottom, and sides, adjusting for the holes, and including the inside surface area of the holes. The final step is summing all these areas to find the total surface area.

What is the main objective of the lesson discussed in the video?

• To measure the height of a building

• To find the perimeter of a square

• To determine the surface area of a right rectangular prism with holes

• To calculate the volume of a rectangular prism

How is the surface area of the top and bottom of the prism calculated?

• By adding the length and width

• By multiplying the length by the width

• By dividing the length by the width

• By subtracting the width from the length

What is the surface area of the two solid sides of the prism?

• 100 cm²

• 180 cm²

• 96 cm²

• 240 cm²

How do you find the surface area of the long sides with holes?

• By dividing the total area by the area of the holes

• By adding the area of the holes to the total area

• By subtracting the area of the holes from the total area

• By multiplying the area of the holes by the total area

What is the total area of the holes on the long sides?

• 180 cm²

• 240 cm²

• 140 cm²

• 100 cm²

How many sides are exposed inside each hole?

• Eight

• Six

• Four

• Two

What is the surface area of the inside of the holes?

• 96 cm²

• 240 cm²

• 140 cm²

• 180 cm²

What is the total surface area of the prism, including all sides and holes?

• 650 cm²

• 600 cm²

• 700 cm²

• 656 cm²

Which step is NOT part of the process to find the total surface area?

• Calculating the area inside the holes

• Determining the area of the long sides with holes

• Finding the volume of the prism

• Calculating the area of the top and bottom

What is the final step in determining the total surface area?

• Subtracting the areas

• Dividing the areas

• Multiplying the areas

• Adding all surface areas together