Question

Question 2:- What are the dimensions of the base of box 2?

a) 9cm × 9cm

b) 8cm × 1cm

c) 8cm × 8cm

d) 9cm × 2cm

Now make two more boxes out of the remaining sheets of paper by cutting out squares of 3cm ×

3cm and 4cm × 4cm from each corner.​

Answer 1

Let 'n' be the no of brick cut

⇒ Vol. of cuboid =n× vol. of cube

⇒7×8×24=n×3

3

⇒

n=49.78

∴ no of brick

that can be cut out is

49

Vol. left = Vol. of cuboid −(49) Vol. of cube

=(7×8×24)−49(3

3

)=

21