Question

Triangle angle theorems
The value of x is?

Answer 1

3 degrees

Explanation:

Answer 2

what you do I set 45x equal to your two other angles since the sum of those two angles is equal to that angle outside the triangle.

so you have

45x=57+x+25x

combine like terms

45x=57+26x

then subtract 26x on both sides to get

19x=57

lastly divide by 19

x=3