Ask your own question, for FREE!
Mathematics 8 Online
OpenStudy (anonymous):

can someone check this for me please.

OpenStudy (anonymous):

OpenStudy (anonymous):

@hero @e.mccormick

OpenStudy (anonymous):

@akshay1234

OpenStudy (e.mccormick):

Do you understand the reflection notation?

OpenStudy (anonymous):

some what

OpenStudy (e.mccormick):

OK. So, the question asks about tringle 3, or T3. What line could T3 have been reflected over?

OpenStudy (anonymous):

i got A

OpenStudy (e.mccormick):

Well, how did you get A?

OpenStudy (anonymous):

i filled the triangle 3

OpenStudy (anonymous):

flipped**

OpenStudy (e.mccormick):

Flipped T3 over what? What is the name of the line?

OpenStudy (anonymous):

m

OpenStudy (anonymous):

am i right? :/

OpenStudy (e.mccormick):

Ah, but in the diagram, T3 is not near line m.

OpenStudy (anonymous):

ohh

OpenStudy (anonymous):

so i would b triangle 2

OpenStudy (anonymous):

so im going with D line l triangle 2

OpenStudy (e.mccormick):

In reflection notation: \(R_k(source)=desitnation\), R just mees reflection, the subscript k is the na,e of the line, source is the origin object, and desitnation is the resulting object. They gave you T3 as the destination. So yes, \(R_l(\triangle2) = \triangle 3\).

OpenStudy (e.mccormick):

Wheee... messy typing there. Sorry. Trying to get out of here.

OpenStudy (anonymous):

haha its okay :)

OpenStudy (anonymous):

did i get it right :o

OpenStudy (e.mccormick):

Yep. D it is. I hope that helps you understand why. Here is another reference to it: http://www.regentsprep.org/Regents/math/geometry/GT1/reflect.htm Right at the top.

OpenStudy (anonymous):

okay thank you i do :)

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!