OpenStudy (anonymous):

In ΔACB, M is the midpoint of AC and N is the midpoint of CB. Use the Midsegment Theorem to find the length of MN. A. MN = 12 B. There is not enough information to find MN. C. MN = 8.33 D. MN = 9

5 years ago
OpenStudy (anonymous):
5 years ago

OpenStudy (mathstudent55):

This is the midsegment theorem: In a triangle, the segment that joins the midpoints of two sides is parallel to and half the length of the third side.

5 years ago
OpenStudy (anonymous):

C?

5 years ago
OpenStudy (mathstudent55):

Did you read and understand the theorem? Is 8.33 half of 18?

5 years ago
OpenStudy (anonymous):

ohhh lol D haha i didnt read it care

5 years ago
OpenStudy (anonymous):

carefully*

5 years ago
OpenStudy (mathstudent55):

The problem even tells you which theorem to use, so you should look it up, read it carefully, understand it, and then you can answer the question on your own. Yes, the correct answer is D

5 years ago