Question

If a cuboid of dimensions 10 cm x 15 cm x 5 cm is cut to form cubes of sides 5 cm
then what is the difference between the sum of the surface areas of these cubes and
the surface area of the original cuboid?​

Answer 1

Answer:

350

Step-by-step explanation:

There are 22 faces on the original cuboid so you would do 25 x 22

You have to multiply 22 by 25 because the cuboid has a side of 5 so the face would be 5 x 5 = 25

Also, there are 6 cubes when you split the cuboid into cubes so you would do 25 x 36

You have to multiply 25 by 36 because each of the cubes has 6 faces and since there are 6 cubes, 6 x 6 = 36

25 x 22 = 550

25 x 36 = 900

900 - 550 = 350