number of pixels in image, given image size, pixel info

[Lerxst2112]

Okay, a satellite takes a picture 185 km per side. Each pixel is 30 meters per side, how many pixels total?

 

[Loren]

One approach.

185 km = 185 000 m.

185000/30 = how many pixels on each side? What do you do with that to find the total area?

 

[jwpaine]

Why not (185000)^2 / 30^2 = total pixels?