Answer:
c
Step-by-step explanation:
no need to explain
hope it helps
2x + 90= 180
Because x is congruent to z, x=z
y is given as 90
x+y+z=180
2x + 90 = 180
Answer:
12/13
Step-by-step explanation:
The cosine of an angle in a triangle can be calculated as a relation between the adjacent side and the hypothenuse. So, in this case the adjacent side of θ is 24 and the hypothenuse is 26.
Then:
cos(θ) = 24/26 = 12/13