# Find the Edge of a Cube Whose Surface Area is 432 M2. - Mathematics

Short Note

Find the edge of a cube whose surface area is 432 m2.

#### Solution

Let,

a → Edge of the cube

Surface area of the cube = 6a2

So,

6a^2 = 432

a^2 = 432/6

= 72

 a = 6 sqrt(2)  m

Side of the cube is 6 sqrt(2)  m .

Concept: Surface Area of a Cuboid
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#### APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 18 Surface Areas and Volume of a Cuboid and Cube
Exercise 18.3 | Q 2.2 | Page 35

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