Find the lateral surface area and the total surface area of a cuboid which is 8 m long, 5 m broad, and 3.5 m high.

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

91 sq . cm . and 171 sq . cm

81 sq . cm . and 181 sq . cm

95 sq . cm . and 191 sq . cm

101 sq . cm . and 161 sq . cm

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

For the given cuboid we have,
Length l= 8 m
Breadth b= 5 m
Height h= 3.5 cm
Lateral surface area of cuboid,

LSA = 2 h (l + b)

= 2 \times 3.5 (8 + 5)

= 7 \times 45.5

= 91 m^{2}

Total surface area of cuboid,

TSA = 2 (lb + bh + hl)

\begin{matrix} = 2 (8 \times 5 + 5 \times 3.5 + 3.5 \times 8) \\ = 2 (40 + 17.5 + 28) \\ = 2 \times 85.5 \\ = 171 m^{2} \end{matrix}

So, lateral surface area = 91 sq cm while total surface area 171 sq. cm. respectively.

JEE

NEET

Foundation JEE

Foundation NEET

CBSE