Question

The rectangular box is square base and its base area is 64cm square. If the thickness of the box is 5cm, find the total surface area.
Please help me for my H/W.

Answer 1

Answer:

first write the area of reactangel

then do 2( 64+ 5)

then you get 2(69)

then multiply 2 with 69

you will get 138 cm that is your answer ok

Answer 2

Answer:

length=8,breadth=8,height=5

(8×8)+(8×5)+(5×8)

=64+40+40

=144

ans=144