Here's the question you clicked on:
rebeccaskell94
In the figure below, the length of line segment CB is 58 units and the length of line segment BG is 120 units. What is the length of line segment GE? http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_0404_07/image0084e2ee688.gif Does anyone know a formula I would use to solve this
to find BA , then subtract that from 120
1......find AB using tan 45 in triangle ABC 2......find AG using AG=120-AB 3......find GE using tan 60 in triangle AGE o.O
@rebeccaskell94 did you understand?
Idunnow is mukushala and 91's ways good? how do you do sin/cos anyway D: urg I'm so confused. My brain is not a math brain :(
I triangle CBA, what's tan 45? @rebeccaskell94
Doesn't tan(45) = 1?
yeah, you;re right but it's also perpendicular/ adjacent, isn't it?
Idk what to do with it now D:
Remember how the legs of a 45-45-90 triangle are the same length? Can you find AG knowing that?
Are you studying trig? these are 45-45-90 triangle and 30-60-90 triangle
ummm can we have like, 1 person helping me xD too many is making it worse. It takes a while to help me bc my brain...it doesn't get along well with math
http://www.khanacademy.org/math/geometry/triangles/v/45-45-90-triangles and http://www.khanacademy.org/math/geometry/triangles/v/intro-to-30-60-90-triangles
I'll let others help here :P I'll observe silently :)
But ashy!! D: I wanted you to help me xD
|dw:1343150968050:dw| If x = 58, can you figure the rest out?
I just used the ratio for a 45-45-90 triangle and 30-60-90 triangle.
@rebeccaskell94 @Calcmathlete is a great helper, I'm sure you'll understand .
Okay I has this XD|dw:1343151162714:dw|
Oh. You misread that part for AG....it said 120 - x. When I said to figure out the rest, I meant did you understand how to get the answer now using the ratios, but it's good practice XD Good job by the way :)
If you didn't notice, all it asked for was GE which you have as 62√3 which you have :)
Oh wait, so are my ∆s right?
Yup :) Good work! That one part on the bottom of the 30-60-90 triangle is wrong because you misread it, but as long as you understand the concept, it's fine :)
|dw:1343151807943:dw|
Yeah. I think you read it as 20 - x when it's 120 - x.
Good job though. 45-45-90 and 30-60-90 triangles can be very simple once you remember the ratios! :D
lol why the quotation marks around my name D: