Question

5. Four cubes of side 7 cm are joined together to form a cuboid. Find the surface area of the resulting cuboid.​

Answer 1

Answer:

Length of cuboid (l) = 7 × 4 = 28 cm

breadth of cuboid (b) = 7 cm

height of cuboid (h) = 7 cm

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

= 2(28 × 7 + 7 × 7 + 7 × 28)

= 2(196 + 49 + 196)

= 2 × 441

= 882 cm square.

Answer 2

Answer:

882 sq.cm

$length = 7 \times 4 = 28$

$width = 7$

$height = 7$