Respuesta :
Girls are usually completely physically mature by 18 years old.
What is puberty ?
Puberty refers to the physical transformation of a child's body into an adult one capable of fertile reproduction.
In girls puberty generally attains before two years earlier than the boys. And the exact age of the girls to attain puberty is in between the age of 10 to 14.
Hence the age of girls to attain puberty is 14.
To know more about puberty, visit the below link:
https://brainly.com/question/25821562
#SPJ2