Trigonometry: The apparent size of a tall building 2 km away is 0.05 radians. What is the building's approximate height?

the answer was 100 m but I was just wondering how they got 100

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12