A rectangular solid has sides of 7 cm + 9 cm + 11 cm what

is its surface area

Your answer would be: 693.

Explanation:

When finding the area in a problem use L*W*H.

That being said, you now have to multiply the L*W*H (7x9x11)

7 * 9 * 11 = 693

So the answer would be 693 because, if you are finding an area you use L*W*H to find your area.

478

Step-by-step explanation:

Surface Area=2 (ab+ac+bc)

SA=2 ((7*9) + (7*11) + (9*11))