Question

Which property can be justified using the ratios in triangle XYZ ?
A)
cos Y = X/Z
B)
sin Y = cos(90degrees - Y)
C)
cos Z = sin (90degrees - Y)
D)
tan Z = sin Y/cos Z

Answer 1

photo:
http://usatestprep.com/modules/gallery/files/54/5428/5428.JPG

Answer 2

please and ty

Answer 3

B, although this would work for any triangle

Answer 4

thanks!

Answer 5

If you look at the graphs of y=sin(x) and y=cos(x) you can see they are offset by 90 degrees on the x axis.

Answer 6

ahhh. i had the formulas mixed up haha!