Code:

from math import pi
def perimeter_rectangle(x:float,y:float)->float:
    return 2*(x+y)
def area_rectangle(x:float,y:float)->float:
    return x*y
def perimeter_triangle(x:float,y:float,z:float)->float:
    return x+y+z
def area_rectangle(x:float,y:float)->float:
    return 0.5*x*y
def perimeter_circle(x:float)->float:
    return 2*pi*x
def area_circle(x:float)->float:
    return pi*(x*x)

from math import sqrt,pi
def chu_vi_hinh_chu_nhat(cd,cr):
    return (cd+cr)*2
def dien_tich_hinh_chu_nhat(cd,cr):
    return cd*cr
def chu_vi_hinh_tam_giac(c1,c2,c3):
    return c1+c2+c3
def dien_tich_hinh_tam_giac(c1,c2,c3):
    ncv = chu_vi_hinh_tam_giac(c1,c2,c3)/2
    return sqrt(ncv*(ncv-a)*(ncv-b)*(ncv-c))
def chu_vi_hinh_tron(bk):
    return bk*2*pi
def dien_tich_hinh_tron(bk):
    return bk*bk*pi

`@Daoanhviet96`