Question

pls e urgent pune nota la mate si sunt planta de venetia​

Answer 1

a) Pb=3*6=18cm

b)Ab=36√3/4=9√3cm^2

c)Pf=6+5+5=16cm

d)Fie VM⊥AB => M mijl AB => AM=MB=6/2=3

AM^2+VM^2=VA^2

VM^2=25-9

VM^2=16

VM=4 cm

Af=VM*AB/2=4*6/2=24/2=12cm^2