Thread: I need help with this triangle proof.

Picture of figure: http://i1250.photobucket.com/albums/...d/Picture9.png

Picture of proof: http://i1250.photobucket.com/albums/.../Picture10.png


questions:

12) The best reason for statement 16 of this proof is:
a. AAS
b. ASA
c. SSS
d. SAS

13) The best reason for statement 10 of this proof is:
a. segment GH is congruent to segment GH
b. H is the midpoint of segment EF
c. <EGH is congruent to <FGH
d. segment GH is perpendicular to segment EF

14) The best reason for statement 14 of this proof is
a. substitution property of equality
b. CPCTC
c. definition of congruent segments
d. given

15) The best statement for reason 6 of this proof is:
a. segment CD is congruent to CD
b. D is the midpoint of segment AB
c. segment CD is perpendicular to segment AB
d. <ACD is congruent to <BCD

16) The best reason for statement 7 of this proof is:
a. definition of perpendicular segments
b. definition of a midpoint
c. reflexive property
d. congruent angles form congruent segments

17) The best reason for statement 11 of this proof is:
a. reflexive property
b. congruent angles form congruent segments
c. definition of a midpoint
d. definition of perpendicular segments

18) the best reason for statement 17 of this proof is:
a. substitution property of congruence
b. definition of congruent segments
c. definition of a mean
d. CPCTC


thank you soooo much. I know it seems long but please. I need this ASAP

Can someone please answer this!!! you can just simply finish the proof instead of answering those questions. :\

This is why I refuse to do two-column proofs. A simple CPCTC argument already proves the statement.

Also, the questions are a little out of order. I'd start with question 15 and go from there.

Originally Posted by yazzysyed

Picture of figure: http://i1250.photobucket.com/albums/...d/Picture9.png

Picture of proof: http://i1250.photobucket.com/albums/.../Picture10.png


questions:

12) The best reason for statement 16 of this proof is:
a. AAS
b. ASA
c. SSS
d. SAS

13) The best reason for statement 10 of this proof is:
a. segment GH is congruent to segment GH
b. H is the midpoint of segment EF
c. <EGH is congruent to <FGH
d. segment GH is perpendicular to segment EF

14) The best reason for statement 14 of this proof is
a. substitution property of equality
b. CPCTC
c. definition of congruent segments
d. given

15) The best statement for reason 6 of this proof is:
a. segment CD is congruent to CD
b. D is the midpoint of segment AB
c. segment CD is perpendicular to segment AB
d. <ACD is congruent to <BCD

16) The best reason for statement 7 of this proof is:
a. definition of perpendicular segments
b. definition of a midpoint
c. reflexive property
d. congruent angles form congruent segments

17) The best reason for statement 11 of this proof is:
a. reflexive property
b. congruent angles form congruent segments
c. definition of a midpoint
d. definition of perpendicular segments

18) the best reason for statement 17 of this proof is:
a. substitution property of congruence
b. definition of congruent segments
c. definition of a mean
d. CPCTC


thank you soooo much. I know it seems long but please. I need this ASAP

number 6 statement : AD = DB
number 7 reason: Definition of congruent segments
number 10 statement: EH = HF
number 11 reason : definition of congruent segments
number 14 reason: Cancellation Law of Division or Division Property of Equality
number 16 reason : ASA
number 17 statement: CPCTC

CPCTC applies to any corresponding parts of a congruent triangle. We're done. One line proof.

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