Answer: 42 degrees
Step-by-step explanation: One degree angles are used in measuring angles as referenced using circles. An angle that turns through 1/360 of a circle is known as a “one-degree angle". And so if an angle turns through a number of one-degree angles it is said to have that number of one degree angles.
And so an angle that turns through 42 one degree angles has a measure of 42 degrees. That's the correct answer.