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for #3, what areas might we be summing? I remember with the example, the intersection was inside the triangle, so we could use the area of the triangle... any hints? ~Lauren | for #3, what areas might we be summing? I remember with the example, the intersection was inside the triangle, so we could use the area of the triangle... any hints? ~Lauren | ||
| − | with p being | + | with p being outside, there are now 2 little triangles outside the bigger eq triangle. sum all of the triangles in one direction than all of them in another direction - if that makes sense. what I did was write down the areas for all of the triangles ad see which ones give me what I needed - Sue |
I'm down to 9 and 10 now. no clue on 9 - Sue | I'm down to 9 and 10 now. no clue on 9 - Sue | ||
| + | |||
| + | We don't have to do number 9 because we did the proof in class. -Jennie | ||
Revision as of 12:10, 22 September 2009
- For problem number one, I see that the sum of the areas of the four small triangles is equal to the area of quadrilateral MNPQ. Is this the result we're looking for? It seems a little too obvious but I can't figure anything else out.
I also stated for number one that the area of the little paralllogram is half that of the big parallelogram and that the area of all of the little triangles i equal to the area of the little parallelogram
I am really bad with sketchpad and having trouble with number 2. Can anyone help me get started? -chris
[sure. at what point are you getting hung up on? - sue]
- thanks anyways i got it. For any one need help with it, just calculate the lengths and think of thm 28 (multiply)
any hints for # 10 - sue
for # 3, if anyone has gotten it, is it a bunch of summing of areas?
it is!
for #3, what areas might we be summing? I remember with the example, the intersection was inside the triangle, so we could use the area of the triangle... any hints? ~Lauren
with p being outside, there are now 2 little triangles outside the bigger eq triangle. sum all of the triangles in one direction than all of them in another direction - if that makes sense. what I did was write down the areas for all of the triangles ad see which ones give me what I needed - Sue
I'm down to 9 and 10 now. no clue on 9 - Sue
We don't have to do number 9 because we did the proof in class. -Jennie
