Question

A rectangular solid has sides of 7 cm + 9 cm + 11 cm what
is its surface area

Answer 1

478

Step-by-step explanation:

Surface Area=2(ab+ac+bc)

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

Answer 2

Your answer would be: 693.

Step-by-step 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.