Cube

Mensuration of Class 10

Cube has six faces. Each face is a square.

Cube

(i) T.S.A. = 2 [a. a. + a. a + a. a]

= 2[a2 + a2 + a2]

= 2(3a2)

= 6a2

(ii) L.S.A. = 2[a2 + a2]

= 4a2

(iii) Volume = (Area of base) × Height

= (a2). a = a3.

(iv) Length of altitude  = √3a

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