Based on the figure, select all true equations. B
48
b
C С
cos(42)
=
С
b.
cos(48)
С
8
sin(42)
c с
sin(48)
с
tan(42)
tan(48)
등

56

step-by-step explanation:

yes

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl