Answer:
The length of BE is 5 units.
Step-by-step explanation:
ABCD is rectangle
AC is a diagonal and BD is a diagonal too.
Diagonals of rectangle are equal and bisect each other perpendicularly.
So, AE = BE
AE = 1/2 × AC
= 1/2 × 10
= 5
BE = 5
Hence the length of BE is 5 units.