Question 1177768
tan 
*[illustration crater.png].
tan25 = 3/y 

y=3/tan 25

x+y = 3 /tan 18

y= 3/tan18   -x

3/tan 18-x =3/ tan 25

x= 3/tan 18 - 3/tan 25

=9.37 - 6.38 = 2.95 miles 

distance between the edges of the crater=2.95 miles