Geometria

angolo in A = 30°

h = 9 cm 

L = 9/sen 30° = 18 cm 

AH = √L^2-h^2 = 9√2^2-1 = 9√3 m 

l = 9/sen 60° = 9*2/√3 = 6√3 cm 

H'B = √36*3 -9^2 = √27 = 3√3  cm 

b = DC = 6

B = AB = 6+9√3+3√3 = 6+12√3 = 6(1+2√3) 

perimetro =  L+l+b*B =18+6√3+6+6(1+2√3) = 24+6(√3+1+2√3) cm 

area A = 6(1+2√3)*9/2 = 27(1+2√3) cm^2