a little help with 8 trig/geometry topics...?

random123

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Jun 8, 2006
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1
I need a explanation of how to solve the following:

1. Prove triangles congruency in 2-column style : SSS,SAS,ASA.

2. Use trig functions (sine, cosine, tangent) and inverse trig functions (sin<sup>1</sup>, cos<sup>1</sup>, tan<sup>1</sup>) to find missing information.

3. Use the Law of Sines to find the missing oieces of non-right triangles.

4. Determine whether shapes are similar using the properties of similarity (AAA, correspoding sides have equal ratios).

5. r:r2:r3

6. Find the sum of interior angles of a polygon: (n - 2)(180°)

7. Find the volume of prisms and pyramids (Bh, Bh/3)

8. Total surface area of 3-dimensional figures giving base, height, and slant height measurements.

Thanks for reading and help is greatly appreciated! =]
 
I don't see any actual questions listed in your post. It looks more like a listing of "what you should have learned this year"...?

Are you asking for links to lessons covering all of these topics? (There is of course no possible way for us to "teach" an entire semester or year of geometry, is why I ask.)

Thank you.

Eliz.
 
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