5.75 foot tall Le places a mirror 100 feet from the base the head. He walks backwards 7 feet until he can see the top of the memorial in the mirror. How tall is the face of the memorial?

b. 18

step-by-step explanation:

so the equation for this is:

ab^2=ac⋅ad

ab being the top length of 6 and ac being the length of 2 and ad being the length of x. let's plug into the equation:

6^2 = 2x

now lets just solve for x:

36 = 2x

18 = x

i hope that !