Question

find the surface area of cube one of whose edge is 9 cm​

Answer 1

ANSWER:-

--> 486 Cm sq.

EXPLANATION:-

GIVEN-;

• The side of a cube(a) = 9 cm

TO FIND -;

The surface area of cube which is given in question.....

FORMULA-;

The surface area of a cube =

$6(a) {?}^{2}$

where "a" is a side of cube

SOLUTION:-

The surface area of the cube =

$6 \times (9) {?}^{2}$

= 486 Cm sq.

CONCLUSION:-

Hence we get the surface area of the cube is 486 Cm sq.

Answer 2

486

Step-by-step explanation:

Total surface area of a cube = 6(a^2)

So here = 6*9^2

6*81

=486