Question

can i get some quick help with 3 geometry questions??

Answer 1

@amistre64

Answer 2

what are the questions?

Answer 3

okay here is the first one,

Answer 4

i dont have a picture of the triangle, how do you want me to explain that?

Answer 5

A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B and C, as shown below:

A source of laser light is at point A on the ground between two parallel walls. The walls are perpendicular to the ground. AB is a ray of light which strikes the wall on the left at point B. The length of AB is 40m. AC is a ray of light which strikes the wall on the right at point C which is 80 m above the ground. The ray AB makes an angle of 60 degrees with the ground. The ray AC makes an angle of 45 degrees with the ground.

What is the distance between the walls?

80 m

180 m

90 m

100 m

Answer 6

use the draw function and draw it

Answer 7

thats not the right question lol

Answer 8

dont pay attention to that haha

Answer 9

ok haha

Answer 10

what is the value of sin x ?

Answer 11

like i know pretty much what i am doing, just i dont have a brain for math lol. so im a a little slower getting started on questions :/

Answer 12

you want to pick sin, cos, or tan and use the sides to find x, so for examples you could use sin(x)=12/13 which then equals 67.38

Answer 13

okay so

Answer 14

im trying to comprehend this lol

Answer 15

do you understand how to use sin, cos, and tan?

Answer 16

so you would use sin?

Answer 17

yes i do, somewhat lol

Answer 18

sin = opposite over hypotenuse

Answer 19

Yes that is correct! that numbers would you plug in for sin?

Answer 20

*what numbers, not that number

Answer 21

13 is my hopotenuse. 13 is my opposite?

Answer 22

i mean 12

Answer 23

Yup! Good job

Answer 24

then heres my problem , i forget what to do next :(

Answer 25

ok, so....\[\sin x=\frac{ opposite }{ hypotenuse }\]\[\sin x=\frac{ 12 }{ 13}\]\[x=\sin^{-1}

\frac{ 12 }{ 13 }\]
x=67.38

Answer 26

so you divided?

Answer 27

anything else?

Answer 28

yeah i have two more questions, but just to be clear. i think im confusing myself.

Answer 29

what did you do with 12/13 to get that answer

Answer 30

you need to take the inverse of sin on both sides to get x alone, so you would do Sin^-1(12/13)

Answer 31

im going to open up the next question so i can medal you again

Answer 32

@GWiz

Answer 33

ok