Click on the link below to access the Rotating Houses activity. Use the Rotating Houses applet below to manipulate the three-dimensional object to the orthographic perspective stated. You may move the three-dimensional object with your mouse but note that the black arrow indicates the front of the three-dimensional object.

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• Which was more difficult, identifying the view of a stated three-dimensional object or moving the three-dimensional object to represent a specific view? Why?

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  Check Your Answer

  Your answers may vary depending on the complexity of the shape as well as your own comfort level with visualizing the various perspectives.

• Was it important to know the front view before you began? Why?

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  Check Your Answer

  It may have been beneficial to know where the front perspective was on each solid and then attempt to manipulate the solid until you found the view that you were being asked to find.

Practice

Given the three-dimensional representation of each object, construct the six orthographic perspectives. Use scratch paper, Microsoft Paint, or MacPaint to create the six orthographic views. If you plan to use Paint, right-click and copy the grid in order to give yourself a uniform set of blocks to begin with.

1. Object A
   
   
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   This image shows a three-dimensional figure made up of 6 total blocks. The blocks are arranged in a stack of 3, with 1 block protruding out of the bottom of the tower to the right, 1 block protruding out of the middle of the tower to the left, and 1 block protruding out of the middle of the tower to the back.
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   Check Your Answer

   
2. Object B
   
   
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   This image shows a three-dimensional figure made up of 6 total blocks. The blocks are arranged in a horizontal line of 4 blocks. Attached onto the back of the second block from the right, there is a stack of 2 additional blocks.
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3. Object C
   
   
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   This image shows a three-dimensional figure made up of 6 total blocks. The blocks are arranged in a horizontal line of 3 blocks. There is a 4th block stacked onto the middle block. Directly behind the top middle and bottom middle blocks, there are 2 additional blocks stacked in a vertical tower of 2.

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   Check Your Answer