The answer is 6, hope this helped!
Answer:
Step-by-step explanation:
1,8
5,7
2,3
Answer:
∠B = 36.87
Step-by-step explanation:
Since you are trying to find the angle measurement, you must use the inverse of cosine:
(you're using cosine because you have the opposite side and adjacent side):

≈36.87
181 is the only palindrome that has digits that when multiplied together give you 8.
Hope that helps :)