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If the Perimeter of Each Face of a Cube is 32 Cm, Find Its Lateral Surface Area. Note that Four Faces Which Meet the Base of a Cube Are Called Its Lateral Faces. - Mathematics

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प्रश्न

If the perimeter of each face of a cube is 32 cm, find its lateral surface area. Note that four faces which meet the base of a cube are called its lateral faces.

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उत्तर

Let,

a → Side of the cube

Perimeter of each face is 32 cm.

4a = 32

  a = 8cm

Lateral surface area,
=4a2

= 4 × 82

= 256 cm2

So the lateral surface area of the cube is 256 cm2 .

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अध्याय 18: Surface Areas and Volume of a Cuboid and Cube - Exercise 18.3 [पृष्ठ ३५]

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आरडी शर्मा Mathematics [English] Class 9
अध्याय 18 Surface Areas and Volume of a Cuboid and Cube
Exercise 18.3 | Q 3 | पृष्ठ ३५

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