The area of four walls of a cube whose one edge is 2.5 m is 25 m 2 . Options: A . &nbsp True B . &nbsp False C . &nbsp 2 h × ( l + b ) D . &nbsp 2 × l b × ( b h + h l )

Answer: Option A : A Edge of the cube (a) = 2.5 m Area of four walls = 4a 2 = 4 x 2.5 x 2.5 m 2 = 25 m 2

The area of four walls of a cube whose one edge is 2.5 m is 25 m2.

Question

The area of four walls of a cube whose one edge is 2.5 m is 25 m².

Options:

A . True

B . False

C .

2 h \times (l + b)

D .

2 \times l b \times (b h + h l)

Answer: Option A
:
A

Edge of the cube (a) = 2.5 m

Area of four walls = 4a²

= 4 x 2.5 x 2.5 m² = 25 m²

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