While backpacking today, Mia climbed up 985 ft to the peak of the mountain and then climbed down 320 ft to a campsite. If she started at an elevation of 4,579 ft this morning, what was the elevation of her campsite?
(Btw its not 5548 or 5528)

geometry: triangles

solvers

lessons

answers archive

call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

25.45584

do it yourself this is easy

step-by-step explanation:

a ≈ 172.05

step-by-step explanation:

the pictures.

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!