The error is that the student measured the wrong side. Acute angles are less than 90 degrees. So it isn’t possible for the measure to be over 90. The correct measure is 49
I believe the answer is 4 if you need an explanation then reply to me!
Answer: 21
Step-by-step explanation: 84/4 = 21
If there are 15 nickels which is $0.75 and 12 dimes which is $1.20, then that would equal $1.95 and be 27 coins.