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!

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

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

Answer 5

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