Atree cast a shadow that is 20 feet long. frank is 6 feet tall, and while standing next to the tree he cast a shadow that is 4 feet long.

a. how tall is the tree?

b. how much taller is the tree than frank?

answer rather than having to add and subtract the measurements of the semi-circle, notice that the semicircle to the left of ad is actually identical in area to the blank semicircle-shaped space to the left of bc. so if we transferred the red semicircle into the blank space, we would end up with a square of side length 24 cm. the area of a square is s^2 = 24^2 = 676 cm^2.

u also answered this so i think u would know but i am here to

put in or use mine