Question

answer the above two question

Answer 1

Answer:

4)

GIVEN,

   volume of cuboid =36 cm^3

base area of the cuboid =16 cm^2

(base of a cuboid is rectangle  and    base area is   length *breadth)

   lb=16cm^2

  (volume of cuboid is lbh)

   lbh = 36

   16 * h = 36

         h = 36\16

         h=2.25 cm.

the height of the cuboid is 2.25 cm

here's your THIRD question answer...

if we join 3 cubes of edge=3cm, then their length will be=3+3+3=9cm and it will form a cuboid.

TSA of the cuboid=2(lb+bh+lh)

=2{(9×3)+(3×3)+(8×3)}

=2(27+9+27)

=2×63

=126cm²

hope this helps...