Question

find total surface area and lateral surface area of a cube whose edges is 30 cm​

Answer 1

$\bigstar$ Question:

$\longrightarrow$ Find total surface area and lateral surface area of a cube whose edges is 30 cm.

$\bigstar$ To Find:

$\longrightarrow$ Total surface area of cube = ?

$\longrightarrow$ Lateral surface area of cube = ?

$\bigstar$ Given:

$\longrightarrow$ Edge = Side = 30 cm

$\bigstar$ Required Formula:

$\longrightarrow$ Total surface area of cube = 6$a^2$

$\longrightarrow$ Lateral surface area of cube = 4$a^2$

$\bigstar$ Solution:

Let us find for total surface area of cube,

Total surface area of cube = 6$a^2$

= 6 × $30^2$

= 6 × 30 × 30

= 6 × 900

= 5400 cm$^2$

Now,

Lateral surface area of cube = 4$a^2$

= 4 × $30^2$

= 4 × 30 ×30

= 4 × 900

= 3600 cm$^2$

Thus,The total surface area of cube is 5400 cm$^2$ and Lateral surface area of cube is 3600 cm$^2$.

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