With a ruler, you measure the tennis court on the aerial photograph to measure 19 mm from base-line-to-base-line. a standard regulation tennis court must be 23.77 m from base-line-to-base-line. what's the scale of the photograph?

Answer

Scale will be 1:1250

Explanation:

We have given that 19 mm on the photograph represent 23.77 m in real  

So 1 mm on photograph represent

So 10 mm in photograph represent

We know that 1 cm = 10 mm and 12.5 m = 12.5×100 = 1250 cm

So 1 cm in photograph represent 1250 cm in real

Now both have same unit as cm  

So the scale will be 1:1250

mercury

explanation:

mercury is the least dense because of its size