area calculation

Hey, everyone, looking a purchasing a Pro 4 to be able to calculate how many workable acres we have in each field, can I access this on the system platform or would I need an outside expensive software like drone deploy? Forgive me if it's a stupid question I am new to drones

Hi all, I have an interesting math problem (that I am too dang dumb to figure out myself). I need to shoot a construction zone that is 2700' wide. The Field of View on the P4P is 84 degrees. So if I am shooting straight down, what altitude would I need to get the bird up to in order to cover...