PLEASE HELP ASAP I JUST WANNA PASS MY MATH CLASS

59°

Step-by-step explanation:

The total sum of all the angles in a triangle is 180°.

We have the angle measures 31° and 90°.

That adds up to 121°.

To find the measure of angle k, subtract 121 from 180.

180 - 121 = 59°

k = 59°

check:

59 + 31 + 90 = 180°

:D

Have a nice day!

b) 59

Step-by-step explanation:

All the angles should sum up to 180.

When you see a box that means it is a 90 degrees angle. So 90 + 31 = 121

So then subtract 121 from 180 to get 59

Hope this helped :)

answer: the dogs need to shift their focus to human scent.

its because the dogs being trained are for search and rescue thus they need to be able to track humans and their specific scent