Let's say you are in monument valley and decided to measure the height of a rock formation using the method
you learned from the workbook. the distance from your eyes to your finger is 23 inches. when you look
2
through your fingers at the rock, the gap between your fingers is of an inch. you know that you are about 6
miles from the rock. according to this information, approximately how tall is that rock formation? find your
answer in miles (round your answer to the nearest hundredth), then convert it to feet (round it to the nearest
tenth).
miles
feet
get :

-6 is the correct option from the above given options

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

hello, there is a new name in town and that's the human spider!

answer: d.) the total number of protons and neutrons is 15

merry christmas!

~

your friendly neighborhood human spider! .

150.6

all i did was i multiplied 5.02 by 30