Question and Answers Forum
GeometryQuestion and Answers: Page 9
|
Question and Answers Forum |
|
GeometryQuestion and Answers: Page 9 |
| Find tanθ. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 1.Given a regular tetrahedron ABCD with vertices A(0,0,0)B(a,0,0), C(0,a,0),and D(0,0,a).Calculate the volume V and the surface area S of this tetrahedron. |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Two circles are assumed that have the same center. How many circles are there that are tangent to both circles and pass through the assumed point? |
|
|
|
|
|
|
|
|