多选题Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)Ac=dBl and k are parallelCm and l are perpendicular
题目
多选题
Concerning the figure below, if a =b, which of the following statements must be true? (Indicate all such statements.)
A
c=d
B
l and k are parallel
C
m and l are perpendicular