Thread: confusing

A plane has a span of 12 metres.It was photographed as it was flying
directly overhead with a camera with a depth of 12cm.In the photo the
span of the plane was same.Can you tell how higher was the plane when
it was snapped?

Originally Posted by joyiu

A plane has a span of 12 metres.It was photographed as it was flying
directly overhead with a camera with a depth of 12cm.In the photo the
span of the plane was same.Can you tell how higher was the plane when
it was snapped?

I think there is a problem with your English:

I think you mean it was photographed with a camera with a lense of focal length 12cm, and the span of the image of the plane was also 12 cm.

CB