Back to Measure angles in whole-number degrees using a protractor — Problem 4 · Task Set 24
Exercises: Measuring and Sketching Angles Using a Protractor
Work through each section in order. Before you trust a scale reading, always classify
the angle by eye first -- acute, right, or obtuse -- and check that your reading agrees.
Grade 4·23 problems·~30 min·Common Core Math - Grade 4·standard·4-md-c-6
Work through problems with immediate feedback
A
Fluency Practice
1.
An angle's baseline ray reads 0 degrees on the inner scale. The second ray crosses the inner scale at 150 and the outer scale at 30. The angle looks obtuse when you look at it. Which reading is correct?