Question

i stand 34 metres away from an object 1.9 metres wide. how big will it look. thanks

Answer 1

How big? Do you mean angle of observation?

the angle is subtends is approximately 1.9/(34 ) radians

Answer 2

hi there. i mean how big will the 1.9 metre wide object look from 34 metres away. answer in metres please. or can you give me the mathematical calculation to use to work it out. many thanks for your help.,sue