Question

Find the total surface area of the cuboids of length, breadth and height as given below
a) 8 m, 5 m, 3.5 m​

Answer 1

Total surface area of cuboid=2(length×breadth + breadth×height + height×length)

2(8×5 + 5×3.5 + 3.5×8)

2× 85.5

171m^2

Answer 2

GIVEN:-

• Length of cuboid is 8 metres.
• Breadth of cuboid is 5 metres.
• Height of cuboid is 3.5 metres.

TO FIND:-

• Surface Area of cuboid?

SOLUTION:-

Surface Area of cuboid:-

$\dag\small{\boxed{\underline{\rm{\pink{2(length×breadth)+(breadth×height)+(height×length)}}}}}$

Let's put the values:-

• 2(8×5)+(5×3.5)+(3.5×8)
• 2×(40+17.5+28)
• 2×85.5
• 171 metres

Hence, surface area of cuboid with dimensions 8 metres, 5 metres and 3.5 metres is 220 metres.