Question

the volume of a cube is a cm^2 If its length breadth and height are each doubled then find the new volume in cm^3

Answer 1

Answer:

new volume of cube = 8a cm³

Step-by-step explanation:

let  length = l cm

    breadth = b cm

    height = h cm

Volume = a cm³ = (lbh) cm³

New length = 2l cm

new breadth = 2b cm

new height = 2h cm

new volume = (2l)(2b)(2h) = 8 lbh = 8a cm³

Answer 2

Answer:

Given:

• The volume of a cube=acm³

To find:

• The new volume of a cube=?

Solution:

If the length , breadth and length are doubled,

Then,

New length,l=2l

New breadth,b=2b

New height,h=2h

As we know that,

Volume of a cube=lbh=acm³

Now,

New volume=(2l)(2b)(2h)

v=2×2×2(lbh)

v=8(a)cm³

v=8acm³

So,New volume=8acm³