arrow
arrow
arrow
A cuboid having the surface area of 3 adjacent faces as a, b, c has the volume:
Question

A cuboid having the surface area of 3 adjacent faces as a, b, c has the volume:

A.

a3b3c3

B.

(abc)13(abc)^{\frac{1}{3}}​​

C.

abc

D.

(abc)(1/2)(abc)^{(1/2)}​​

Correct option is D

Given:
The Areas of 3 adjacent faces of cuboid = a, b & c
Formula used:
The volume of cuboid = Length × Breadth × Height
Solution:
The area of one face is lB =a
The area of the second face is BH=b
The area of the third face is lh=c
The volume of the cuboid is V=L⋅B⋅H By rearranging these three area equations, we get
So, a = L × B; b = B × H; c = H × L
abc = (L × B) × (B × H) × (H × L)
abc = L2 × B2 × H2
L × B × H = √abc
The volume of cuboid = √abc
(abc)(1/2)(abc)^{(1/2)}​​

Free Tests

Free
Must Attempt

CBT-1 Full Mock Test 1

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC Graduate Level PYP (Held on 5 Jun 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
Free
Must Attempt

RRB NTPC UG Level PYP (Held on 7 Aug 2025 S1)

languageIcon English
  • pdpQsnIcon100 Questions
  • pdpsheetsIcon100 Marks
  • timerIcon90 Mins
languageIcon English
test-prime-package

Access ‘RRB NTPC’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
368k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow