Step-by-step explanation:
answer is 40.56
approx 40.60
hello!!! i hope this helps you.but know that i could be wrong.
yes they are proportional. the angles are all the same, just made smaller. (i cant remember the word) if you were to make them the same size, they would be congruent.
have a good day and again, i could be wrong.
Answer: 
Step-by-step explanation:
Since, given 
And we know that 
Therefore, 
⇒
Thus, 