Angular diameter

Question 1
What is the distance (in meters) of an object that has an angular diameter of 100 arcseconds and a linear diameter of 50 meters?

: Question 2
What is the distance in meters of an object that has an angular diameter of 30 arcseconds and a linear diameter of 10 cm?

Question 3
What is the linear diameter (in meters) of an object that has an angular diameter of 10 arcseconds and a distance of 50,000 meters?

Question 4
How many meters across is a road sign that has an angular size of 120 arcseconds and is 1 km away?

Question 5
What is the angular diameter (in arcseconds) of an object that has a linear diameter of 5 meters and a distance of 3 km?