Mathematics
16 Online
OpenStudy (ghostedly):
http://prntscr.com/9w57kh
I'm guessing the answer is 70?
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (ghostedly):
@AihberKhan
OpenStudy (welshfella):
XY is a line segment not an angle
OpenStudy (anonymous):
right so you could use 70 to find it
OpenStudy (welshfella):
what side on ABCD corresponds to XY?
OpenStudy (welshfella):
Yes the figures are congruent
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (ghostedly):
So, 70 is, or not the answer?
OpenStudy (welshfella):
no 70 is the number of degrees in the angle C
OpenStudy (welshfella):
Look at the lengths of the sides
OpenStudy (ghostedly):
So what would XY be?
OpenStudy (ghostedly):
I kind of get confused working with these.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (welshfella):
which side in ABCD is equal to XY?
OpenStudy (ghostedly):
BC
OpenStudy (welshfella):
If you flip ABCD you'll see it fits exactly on top of WXYZ
OpenStudy (welshfella):
Yes BC - and what is the length of BC?
OpenStudy (welshfella):
Its written in black.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (ghostedly):
10
OpenStudy (welshfella):
right
so XY = BC = 10
OpenStudy (ghostedly):
My answer is 10? I think I'm starting to understand now.
OpenStudy (welshfella):
yes each side in WXYZ = corresponding side in ABCD because they are conguent
OpenStudy (welshfella):
conguent means they are the same in evry way - angles and sides are same.
Join the QuestionCove community and study together with friends!
Sign Up
OpenStudy (welshfella):
so for example <Y = <C = 70 dgrees
OpenStudy (welshfella):
and CD = YZ = 8
OpenStudy (welshfella):
< W is equal to <A which is 120 degrees
OpenStudy (ghostedly):
You were a great help, thanks!
OpenStudy (welshfella):
yw