Question

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

Answer 1

`\displaystyle A_{ \text{surface}} = 42cm ^(2)`

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!

Answer 2

683cm

Explanation:

Pay attention next time