Ask your own question, for FREE!
Mathematics 15 Online
OpenStudy (narissa):

trapezoid PQRS is similar to P'Q"R"S"

OpenStudy (narissa):

563blackghost (563blackghost):

First off you can clearly see that the shape was rotated 180 degrees so which of the answer choices can u scratch off?

OpenStudy (narissa):

a and c?

563blackghost (563blackghost):

correct! now we know that the shape was dilated by a scale factor of ?......how do we find out how much it was dilated?

OpenStudy (narissa):

b?

563blackghost (563blackghost):

we need to know if it was either dilated down by 4 or 1/4.....so how would we find out the scale factor?

OpenStudy (narissa):

confused!

563blackghost (563blackghost):

one sec ill try to explain...

OpenStudy (narissa):

k

OpenStudy (narissa):

its d?

563blackghost (563blackghost):

Q (-4,8) is connected to R (-4,4) which is 4 units long...... Q2 (1,-2) is connected to R2 (1,-1) which is 1 unit long so we put that into a ratio....\[\frac{ 1 }{ 4 }\] so the dialation is 1/4 so what would be the answer...?

OpenStudy (narissa):

b

563blackghost (563blackghost):

Correct xD

OpenStudy (narissa):

k thats what I thought but wasn't sure

OpenStudy (narissa):

i'm going to post another can u help

563blackghost (563blackghost):

sure but can u put it up in another question so i can get credit?

OpenStudy (narissa):

yes thats what i meant do u wanrt me to tag u?

563blackghost (563blackghost):

yup

OpenStudy (narissa):

k thanks again

563blackghost (563blackghost):

np xD

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!