The surface area of a cube is 294 square inches. Find the length of a lateral edge.

Guys will you please help me? Will medal and fan!

Question

The surface area of a cube is 294 square inches. Find the length of a lateral edge.

Guys will you please help me? Will medal and fan!

here_to_help15 · Answer

A cube has six faces.
Each face has area = 294/6 = 49
Each edge = √49 = 7 inches

jdoe0001 · Answer

hmmm how do you find the area of a square? or a rectangle for that matter?

here_to_help15 · Answer

So since it has 6 sides you would multiply the square inch then etc from there you would $$\sqrt{ }$$ it

anonymous · Answer

each flat area of a cube is L*L  there are 6 of these so 6L^2=294
 L^2=294/6=49
L=sq.rt.49=7 each edge

anonymous · Answer

Thank you guys!!! I can only medal one though... But I will fan all of you guys! Thanks my lifesavers!