Question

find the volume, lateral surface area and total surface area of a cube each of whose sides measures 8 cm.​

Answer 1

Answer:

Side = 8 cm . C.S.A = 4 x 8 x 8 = 256 cm square . T.S.A = 6 x 8 x 8 =384 cm square. volume = 8 x 8 x 8 = 512 cm cube.

Answer 2

Solution-

Length of each edge of the cube, a = 8 cm.

(i) Volume of the cube

= a³ cubic units.

= (8 × 8 × 8) cm³

= 512 cm³.

(ii) Lateral surface area of the cube

= 4a² sq units.

= (4 × 8 × 8) cm²

= 256 cm².

(iii) Total surface area of the cube

= 6a² sq units

= (6 × 8 × 8) cm²

= 384 cm².