4.4 ASA and AAS – Due 1/5
Jan 2nd, 2012 by corricelli
Hello,
Please use this section to work together on the following hw problems:
p. 223-227: 9, 19-27 odd, 33, 35. Assume all proofs are 2 column proofs.
Happy proofs,
Mrs. Corricelli
5 Responses to “4.4 ASA and AAS – Due 1/5”
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Could someone help me with question 33? I am aware of the midpoint formula, although I am having trouble with the answer. I got X=3 and Y=-7/2. The back of the book says X=12 and Y=-13. Did anybody else have this problem. It was probably just an algrebra error in my work, but I can’t seem to find what I did wrong. Thanks
Hey Alyson,
I don’t know wat u did but I got the right answer… I started the problem with the midpoint formula for this problem 0+x/2=6 and 9+y=-4. Next, I multiplied the 2 on both sides so it became 0+x=6 and 9+y=-4. Finally, I subtracted 0 for the x endpoint and 9 for the y endpoint on both sides and came out with x=12 and y=-13. Hope this helped!
For question number 21, to prove two triangles are congruent using SAS, you have to get the angle congruent. You can get angle X and angle Y congruent since they’re corresponding, right? Other then that, I’m really understanding with these problems.
Here is a cool link to help with problems concerning congruent triangles. http://www.mathwarehouse.com/geometry/congruent_triangles/
Tyler
Charlie you are correct on 21. that is what i did and it worked out fine. since 2 lines are parralel you can put a transversal to get the angle measure.