3 years ago

What is the volume of this cuboid?Please help me!!!?!

Mathematics

1 answer:

Snowcat [4.5K]3 years ago

6 0

The formula of a volume of a cuboid:

$V=lwh$

l - length

w - width

h - height

We have:

l = (x + 4) cm

w = (x + 1) cm

h = 3 cm

Substitute:

$V=(x+4)(x+1)(3)$ <em>use distributive property</em>

$V=(x+4)(3x+3)$

$V=(x)(3x)+(x)(3)+(4)(3x)+(4)(3)$

$V=3x^2+3x+12x+12$ <em>combine like terms</em>

$\boxed{V=3x^2+15x+12}$

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