Answer:
it is linear pair
Step-by-step explanation:
it is not complementary because it doesn't add up to a sum of 90°. it is not vertical angles because that would mean they have the same degree. it's linear because they add up to 180°.
AB = CD
3x + 10 = 5x
2x = 10
x = 10/2
x = 5 ans
AB = CD = 25 ans
n=10
-2=-n+8
-n=-10
c=10cm
a²+b²=c²
6²+8²=c²
36+64=c²
100=c²
10=c