S.A=2lw+2hw+2lh
where: l=length, w=width, h=height
s.A=2(yx3y)+2(yx3y)+2(yxy0
s.a=6y^2+6y^2+2y^2
s.a= 14y^2
A cuboid has length y, width 3y and depth y then what is its surface area??
a) 14y^2 b) 15y^2 c) 3y^3 d) 5y^2
1 answer