Question

Surface area and volume in a cube, please help

Answer 1

Answer:

[see below]

Step-by-step explanation:

Figure B is a cube.

Question 3:

Surface area of a cube is:

$A=6a^2$

The measurement given is $7.2 \text{ft}$.

$A=6(7.2)^2\\\\A=6(51.84)\\\\A=\boxed{311.04}$

Option D should be the correct answer.

Question 4:

Volume of a cube is:

$V =a^3$

------------

$V=(7.2)^3\\\\V=\boxed{378.248}$

Option D should be the correct answer was well.

Hope this helps you.

Answer 2

Answer:

311.04 and 373.248

Step-by-step explanation: