The top-left one because 3ba is the same as 3ab
X = 61 degrees.
Find the number of degrees in a pentagon by using the following formula:
(number of sides - 2)180 = 540.
There are 540 degrees in a pentagon.
Since we know four of the angles, we can subtract them from 540 to get the fifth angle.
540-138-144-107-90 = 61
Hope this helped =)
Step-by-step explanation:
what is that X, and X²???
No i dont think so but i could be wrong i will double check to be sure though
