Question

What is the length of the segment AB? Round to your nearest tength

Answer 1

first recognize that the line that passes through the vertex A
is parallel to BC
so we can use the two parallel lines and transverse postulates
so if \[BC\parallel l ~~then~~\angle ABC =38\]

Answer 2

then use cosine to find AB

Answer 3

i'm still confused

Answer 4

HI!!

Answer 5

Hello :)

Answer 6

angle A is \(90-38=52\) right?

Answer 7

yes because it is a right triangle

Answer 8

ok so
\[\sin(52^\circ)=\frac{11}{h}\]

Answer 9

that makes
\[h=\frac{11}{\sin(52^\circ)}\]

Answer 10

and of course a calculator

Answer 11

I dont know how to plug that into a calculator

Answer 12

as dumb as that sounds

Answer 13

lol i haven't used a calculator for a while now
on a computer i use this
http://www.wolframalpha.com/input/?i=11%2Fsin%2852%29

Answer 14

thank you soooooo much

Answer 15

hmm that's another way :)

Answer 16

you can also do \[h=\frac{11}{\cos38}\]

Answer 17

the one i started with

Answer 18

\[\color\magenta\heartsuit\]