Calculate the unknown angles give a reason in each case

You can see that the two small angles are close to the 43 degree angle they are both acute while the other is obtuse. Now i'm only in Tenth grade and i read certain letters backwards so i may mix you up but i'ma try.

B should be a 40 degree angle or lower i dont know i dont have my protractor when i need it.

i cant give you the other two cause its too blury to read

the answer is a

step-by-step explanation:

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )