Question

Find the volume the total surface area and the lateral surface area of a cuboid which is 15m long ,12m wide and 4.5m high ?

Answer 1

$\bf\huge\textbf{\underline{\underline{According\:to\:the\:Question}}}$

L = 15m

B = 12m

H = 4.5m

Volume of cuboid = L × B × H

= (15 × 12 × 4.5)

= 810m^3

Total surface area of cuboid = 2(LB + BH + HL)

= 2(15 × 12 + 12 × 4.5 + 15 × 4.5)

= 603m^2

Lateral Surface area of Cuboid = 2(L + B)H

= 2(15 + 12)4.5

= 243m^2

$\bf\huge\bf\huge{\boxed{\bigstar{{243m^2}}}}$          

Answer 2

Step-by-step explanation:

Given:

• Length (l) of Cuboid is 15 m
• Breadth (b) of Cuboid is 12 m
• Height (h) of Cuboid is 4.5 m

To Find:

• What is the volume , total surface area and lateral surface of Cuboid?

Solution:

★ Volume of Cuboid = (l x b x h) cubic units ★

$\small\implies{\sf }$ Volume = (15 x 12 x 4.5) m³

$\small\implies{\sf }$ Volume = 810 m³

★ T.S.A of Cuboid = 2(lb + bh + hl) sq units ★

$\small\implies{\sf }$ TSA = 2(15 x 12 + 12 x 4.5 + 15 x 4.5) m²

$\small\implies{\sf }$ TSA = 603 m²

★ L.S.A of Cuboid = [ 2 (l + b) x h ] sq units ★

$\small\implies{\sf }$ L.S.A = [ 2 (15 + 12) x 4.5 ] m²

$\small\implies{\sf }$ L.S.A = 243 m²