Question

sy
2 cubes each of volume 64 cm are joined end to end. Find the surface area of the
resulting cuboid.
2. A vessel is in the form of a hollow​

Answer 1

Step-by-step explanation:

6a=64

a=64/6

a=10.7cm

surface area = 2a^2

= 2(10.7)^2

= 2(114.49)

=228.98cm^2

Answer 2

Answer:

volume = 64cm cube

a cube = 64

a cube = 4 cube

a = 4

side = 4cm

length of cuboid = 4+4 = 8

area of cuboid = 2( lb+bh+hl)

2( 3×4+4×4+4×8)

2(32+16+32) =2×80

= 160 cm