Respuesta :
Answer:
The correct answer is option A. 5
Step-by-step explanation:
It is given a rectangle ABCD
To find the value of x
It is given that,
AE = 5x - 10 and EC = 2x + 5
Since ABCD is a rectangle, All diagonals are equal.
AC = BD and AE = EC
AE = EC
5x - 10 = 2x + 5
5x - 2x = 5 + 10
3x = 15
x = 15/3 = 5
Therefore the correct answer is option A. 5