Need some help!
Hi there! Is anyone able to shed some light on this task for me?
The tasks are: dividing a piece of A4 card into ten equal sized rectangles can then be used to create a tetrahedron and an octahedron. The dimensions of these rectangles however are only approximate.
Task 1 is to calculate the exact ratio between the length and the width (of the rectangle) if we know the width is unit length. Write your solution in surd form.
Task 2: A combination of a tetrahedron and an octahedron (of the same edge length) will fill 3-D space. Your task now is to try to prove this by calculating the dihedral or the solid angles of a tetrahedron and an octahedron.
The tasks are: dividing a piece of A4 card into ten equal sized rectangles can then be used to create a tetrahedron and an octahedron. The dimensions of these rectangles however are only approximate.
Task 1 is to calculate the exact ratio between the length and the width (of the rectangle) if we know the width is unit length. Write your solution in surd form.
Task 2: A combination of a tetrahedron and an octahedron (of the same edge length) will fill 3-D space. Your task now is to try to prove this by calculating the dihedral or the solid angles of a tetrahedron and an octahedron.
Hi there,
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While you're waiting for an answer, did you know we have 300,000 study resources that could answer your question in TSR's Learn together section?
We have everything from Teacher Marked Essays to Mindmaps and Quizzes to help you with your work. Take a look around.
If you're stuck on how to get started, try creating some resources. It's free to do and can help breakdown tough topics into manageable chunks. Get creating now.
Thanks!
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Original post by aliceryan
Hi there! Is anyone able to shed some light on this task for me?
The tasks are: dividing a piece of A4 card into ten equal sized rectangles can then be used to create a tetrahedron and an octahedron. The dimensions of these rectangles however are only approximate.
Task 1 is to calculate the exact ratio between the length and the width (of the rectangle) if we know the width is unit length. Write your solution in surd form.
Task 2: A combination of a tetrahedron and an octahedron (of the same edge length) will fill 3-D space. Your task now is to try to prove this by calculating the dihedral or the solid angles of a tetrahedron and an octahedron.
The tasks are: dividing a piece of A4 card into ten equal sized rectangles can then be used to create a tetrahedron and an octahedron. The dimensions of these rectangles however are only approximate.
Task 1 is to calculate the exact ratio between the length and the width (of the rectangle) if we know the width is unit length. Write your solution in surd form.
Task 2: A combination of a tetrahedron and an octahedron (of the same edge length) will fill 3-D space. Your task now is to try to prove this by calculating the dihedral or the solid angles of a tetrahedron and an octahedron.
Since the faces of a tetrahedron are triangles, how do you create one using rectangles?
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