Answer :
Hi ,
The dimensions of the card board ,
length = l = 0.4 m = 0.4 × 100 cm = 40cm
breadth = b = 35 cm
height = h = 15 cm
Area of the cardboard required
= Total surface area of the box
= Total surface area of the cuboid
= 2 ( lb + bh + lh )
= 2 ( 40 × 35 + 35 × 15 + 40 × 15 )
= 2 ( 1400 + 525 + 600 )
= 2 × 2525
= 5050 cm^2
Therefore ,
Required area of the cardboard = 5050cm^2
I hope this helps you.
***
The dimensions of the card board ,
length = l = 0.4 m = 0.4 × 100 cm = 40cm
breadth = b = 35 cm
height = h = 15 cm
Area of the cardboard required
= Total surface area of the box
= Total surface area of the cuboid
= 2 ( lb + bh + lh )
= 2 ( 40 × 35 + 35 × 15 + 40 × 15 )
= 2 ( 1400 + 525 + 600 )
= 2 × 2525
= 5050 cm^2
Therefore ,
Required area of the cardboard = 5050cm^2
I hope this helps you.
***
Answer:
your answer is 5050 CM ^2
Step-by-step explanation:
your formula is 2 ( lb X bh X hl )