Question

find the thickness of a mathematics book whose volume is 620cm³ and whose width is 18cm and length 20cm

Answer 1

✬ The thickness of a mathematics book is 1.722 cm(approx)✬

Step-by-step explanation:

Given: Volume of book is 620 cm³ and whose width is 18 cm and length is 20 cm.

To find: Thickness of a mathematical book

Required Formula:

• Volume of cuboid = lbh

Where,

• l(length) = 20 cm
• b(width) = 18 cm
• h = thickness of a book
• Volume = 620 cm³

Let's do it,

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Applying the values,

$\\ \longrightarrow\sf{620 = 20 \times 18 \times h} \\ \\ \longrightarrow\sf{620 = 360 \times h} \\ \\ \longrightarrow\sf{h = \frac{ \cancel{620}}{ \cancel{360}}} \\ \\ \longrightarrow \underline{ \boxed{\frak{h = 1.722(approx)}}} \: \green{ \bigstar}$

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