Question

http://prntscr.com/j01309

Answer 1

@bm717

Answer 2

What do you think AD is?

Answer 3

I don't know

Answer 4

100

Answer 5

first step is to look at the small triangle

Answer 6

this is a special type of triangle called a 30-60-90 triangle where the side across from 30 is x, the side across from 60 is x* sqrt(3), and the hypotenuse is 2x

that being said, the side across from 30 is the side across from 60 divided by sqrt(3), so just 5

Answer 7

now we have to examine the big triangle

Answer 8

based on what we said earlier, what do you think the side across from 60 must be?

Answer 9

well, remember what we said earlier - the side across from 60 is sqrt(3) times the side across 30

so 5sqrt(3) * sqrt(3) = 5 * 3 = 15, so we combine our data like so:

Answer 10

if the entire flagpole is 15 and the segment BC is 5, then what do you think AB might be?

Answer 11

10

Answer 12

good

Answer 13

thanks