How old is a boy, and he no longer grows tall. How can we know if he can grow taller? What does Guangzhou Suiya Hospital do to check his height?

Testicles begin to develop and become larger, which is a sign of the beginning of puberty;

2. In adolescence, besides enlarged testicles, there will be secondary sexual characteristics, including penis, scrotum, pubic hair, armpit hair, beard, Adam's apple and voice change.

3. Height: After puberty 1-2 years, the physical growth appears the second height growth peak after birth, which lasts for 2.5-3 years, and the height of boys increases by about 9-10 cm every year;

4. Weight: At the second growth peak, the weight also increased rapidly, with an increase of about 25-30kg. Moreover, the boy's shoulders have widened and his muscle development has become stronger. If a boy has a second sexual characteristic before he is nine years old, he may be precocious. If he still has no secondary sexual characteristics after 16 years old, it means that he is sexually retarded, so he should pay attention to the influence of the disease and need to see a doctor in time.

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(20 1 1? Quanzhou) as shown in the figure, if the regular hexagon ABCDEF with the side length of 1 rotates 60 clockwise around the vertex A and then coincides with the regular hexagon AGHMNP, then