Question

Find the surface area of the rectangular prism.
4 yd
3 yd
3 yd

Answer 1

Answer:

$A = 66\ yd^2$

Step-by-step explanation:

You can either add up all the areas of the faces of the rectangular prism, or you can use the following formula:

$A = 2(wl+hl+hw)\\A = 2(3 \times 3 + 4 \times 3 + 4 \times 3)\\A = 2(9+12+12)\\A = 2(33)\\A = 66$

Answer 2

Answer:

The surface area of the rectangular prism is $66\ yd^2$

Step-by-step explanation:

Step 1:  Find the area of the front and back

$A = l * w$

$A = 3\ yd * 4\ yd$

$A = 12\ yd^2 * 2$

$A = 24\ yd^2$

Step 2:  Find the area of the top and bottom

$A = l * w$

$A = 3\ yd * 3\ yd$

$A = 9\ yd^2 * 2$

$A = 18\ yd^2$

Step 3:  Find the area of the left and right sides

$A = l * w$

$A = 3\ yd * 4\ yd$

$A = 12\ yd^2 * 2$

$A = 24\ yd^2$

Step 4:  Total area

$A_{total} = 24\ yd^2 + 18\ yd^2 + 24\ yd^2$

$A_{total}= 66\ yd^2$

Answer:  The surface area of the rectangular prism is $66\ yd^2$