Find the measure of angle y. Round your answer to the nearest hundredth. (please type the numerical answer only)

45°

Step-by-step explanation:

So this is a right triangle, which means one point has to be 90°

All the points of this triangle added together has to equal 180°

2y + 90 =180

2y=90

y=45°

*The other numbers 4 and 20 are not relevant to this question so do get confused*

Hope this helps :)

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

you didn't give me the choices, so i will just give you the graph so you can look at your choices and choose the right one.