Question

Find tsa and lsa of cube whose edges are 13cm

Answer 1

Tsa of cube=6a^2
6(13)^2
1014cm^2
Csa of cube=4a^2
=4(13)^2
676cm^2

Answer 2

SOLUTION :

The edge of a cube = 13 cm    (given)

To be found :-

The Total Surface Area (TSA) of the cube

and Lateral Surface Area (LSA) of the cube

Total Surface Area of the cube

Formula = $\bf6a^{2}$ unit sq.   [ ∴ in which a is the side(edge) of the cube ]

             = $\bf6 \times (13)^{2}$  cm sq.

             = $\bf1014$  cm sq.

∴ Total Surface Area of the cube = 1014 cm sq,

Lateral Surface Area of the cube

Formula =  $\bf4a^{2}$ unit sq.    [ ∴ in which a is the side(edge) of the cube ]

             = $\bf4 \times (13)^{2}$  cm sq.

             = $\bf676$  cm sq.

∴ Lateral Surface Area of the cube = 676 cm sq,

Hence,

The Total Surface Area (TSA) of the cube is 1014 cm sq.

and Lateral Surface Area (LSA) of the cube is 676 cm sq.