Question

vă rog frumos ajutați mă e urgent!! 1,2,3

Answer 1

1) 
a) S= 8l + 4h = 40cm+24cm = 64cm
b) D = V(l^2 +l^2+h^2) = V(25+25+36) = V86cm
c) Pb = 4l = 20cm
d) Ab = l^2= 25cm2
e) Al = Pbxh = 20x6=120cm2

2) 
a) Pb = 4l = 4x3=12cm
b) Ab = l^2= 9cm2
c) Alat= Pbxh = 12x5=60cm2
d) Atot = Alat +2Ab = 60cm2+18cm2 = 78cm2
e) V = Ab xh =9x5= 45cm3

3) 
 Se observa ca l=4cm si h=6 cm
a) Alat = Pbxh 4x4x6=96cm2
b) A tot = Alat + 2Ab = 96cm2 + 32cm2= 128cm2
c) V= Ab xh = l^2xh =96cm3