Question

please answer anyone fast​

Answer 1

Let sides of cube be a

VOLUME OF CUBE= 27 cm^2
a^3=27
a=
$\sqrt{27}$
a=3cm

Now if we join 2 cubes together it will become a cuboid and length of cuboid becomes 6 cm.

now,
L=6cm
B=3cm
H=3cm

SURFACE AREA OF CUBOID=2(LB+BH+LH)

=2(6×3+3×3+6×3)
=2(18+9+18)
=2(45)
=90cm^2

Hope it will help uu...... ;-D