Reading Inner vs Outer Protractor Scales

Questions

1. MultiChoice

   If an angle opens to the right and its base ray points to 0 on the inside, which scale do you read?

2. MultiChoice

   If an angle opens to the left and its base ray points to 0 on the outside, which scale do you read?

3. MultiChoice

   A student measures an acute angle opening right and incorrectly reads 120 instead of:

4. MultiChoice

   A student measures an obtuse angle opening left and incorrectly reads 30 instead of:

5. MultiChoice

   The sum of the inner scale reading and outer scale reading at any point on a protractor equals:

6. MultiChoice

   If the outer scale reads 100 degrees, what does the inner scale read at the exact same mark?

7. MultiChoice

   If the inner scale reads 140 degrees, what does the outer scale read at the exact same mark?

8. MultiChoice

   If you measure an angle and find it is 25 degrees, what type of angle is it?

9. MultiChoice

   If you measure an angle and find it is 165 degrees, what type of angle is it?

10. MultiChoice

    At what degree mark do both the inner and outer scales show the same number?

11. MultiChoice

    An acute angle is measured carefully. The ray points 2 tick marks past 70 degrees. Its measure is:

12. MultiChoice

    An obtuse angle is measured carefully. The ray points 2 tick marks before 120 degrees. Its measure is: