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Structure a proof with givens, goals, and reasons
Worksheet
Grade Level
Geometry
GEO.19 Structure a proof with givens, goals, and reasons
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A proof has AB/DE = BC/EF = AC/DF. The goal is triangle ABC is similar to triangle DEF. Which next statement and reason is valid?
A
triangle ABC is congruent to triangle DEF; SSS congruence theorem
B
angle A is congruent to angle D; CPCTC
C
triangle ABC is similar to triangle DEF; SSS similarity theorem
D
AB is parallel to DE; definition of proportional sides
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