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Geometry 22 Online
OpenStudy (anonymous):

If triangle MNO is similar to triangle PQR, which statement is true about the two triangles?

OpenStudy (anonymous):

Select one: a. Segment NO is proportional to segment QR, and angles M and P are congruent. b. Segment MN is congruent to segment PQ, and angles O and R are congruent. c. Segment NO is proportional to segment QR, and angles M and P are proportional. d. Segment MN is congruent to segment PQ, and angles O and R are proportional.

OpenStudy (anonymous):

@Directrix

Directrix (directrix):

By definition of similar triangles, corresponding angles are congruent and corresponding sides are in proportion. So, let's look at the options.

Directrix (directrix):

The congruent segment options are out. Congruent segments are in a 1 to 1 ratio but we have no reason to believe that they are congruent here. Just proportional.

Directrix (directrix):

Angles are not proportional in similar triangles - they are congruent. So, this option is not correct: angles M and P are proportional.

Directrix (directrix):

@Edge What is left for the correct option? Post what you think it is. Okay?

OpenStudy (anonymous):

okay im back

OpenStudy (anonymous):

is it either A or B

OpenStudy (anonymous):

@Directrix

Directrix (directrix):

Yes, it has to be A.

OpenStudy (anonymous):

oh I thought it would be B

OpenStudy (anonymous):

isn't it basically saying the same thing as A

Directrix (directrix):

b. Segment MN is congruent to segment PQ, and angles O and R are congruent. Congruent and proportional are not the same. One is a special case of the other. In these similar triangles, we have no way of knowing that segment MN is congruent to segment PQ. Corresponding sides of similar triangles are in proportion by definition. If the question were mine to answer, I would write A. If you want to go with B, then that's your prerogative but don't be surprised when an "x" comes back next to the B answer.

OpenStudy (anonymous):

ok thnx

Directrix (directrix):

You are welcome.

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