1103020801

SubArea: 
Points and Vectors
Level: 
A
Project ID: 
1103020801
Accepted: 
1
Clonable: 
0
Easy: 
0
Find the coordinates of the midpoints of the line segments \( AB \), \( BC \), \( AC \). For coordinates of the points \( A \), \( B \) and \( C \), see the picture.
\( S_{AB}=\left[-\frac12,1 \right]\text{, }\ S_{BC}=[4,2 ]\text{, }\ S_{AC}=\left[\frac12, 4\right] \)
\( S_{AB}=\left[-\frac32,2 \right]\text{, }\ S_{BC}=[1,3 ]\text{, }\ S_{AC}=\left[\frac52, 4\right] \)
\( S_{AB}=\left[\frac12,1 \right]\text{, }\ S_{BC}=[4,2 ]\text{, }\ S_{AC}=\left[-\frac12, 4\right] \)
\( S_{AB}=\left[1,-\frac12 \right]\text{, }\ S_{BC}=[2,4 ]\text{, }\ S_{AC}=\left[4,\frac12\right] \)