Question

the length,breadth and height of a cuboid are 3cm,4cm and 5cm respectively.find its total surface area,volume and the length of diagonal.​

Answer 1

Step-by-step explanation:

given,

length=3cm

breadth=4cm

height=5cm

TOTAL SURFACE AREA OF CUBOID

=2(lb+bh+hl)

=2(3×4 +4×5 +5×3)

=2(12+20+15)

=2(22+15)

=2(37)

TSA =74

VOLUME OF CUBOID=L×B×H

=3×4×5

=12×5

=60

Answer 2

Given:

Length of cuboid (l) = 3cm

Breadth of cuboid (b) = 4cm

Height of cuboid (h) = 5cm

To Find:

The surface area, volume, and length of the diagonal of the cuboid.

Solution:

The surface area of cuboid = 2lb + 2 lh + 2hb = 2(12+15+20) cm² = 94cm²

The volume of cuboid = length × breadth × height = (3×4×5) cm³ = 60 cm³

The length of diagonal of a cuboid = √(l²+b²+h²) = √(9+16+25) = 5√2 cm

Hence, the total surface area, volume, and length of diagonal of the cuboid is 94cm², 60cm³, and 5√2cm respectively.