Question

HELP MEH ples.....................

Answer 1

Answer:

683cm

Step-by-step explanation:

Pay attention next time

Answer 2

Answer:

$\displaystyle A_{ \text{surface}} = 42cm ^{2}$

Step-by-step explanation:

we are given the base area of a cube

recall the surface area formula of a cube

$\displaystyle A_{ \text{surface}} = 6( {a}^{2} )$

notice that, we are given the base area 7cm² in other words we are given a² i.e 7cm²

Thus substitute:

$\displaystyle A_{ \text{surface}} = 6( 7 )cm ^{2}$

simplify multiplication:

$\displaystyle A_{ \text{surface}} = 42cm ^{2}$

and we are done!