Back to Angles are taken to angles of the same measure — Problem 2 · Task Set 20
Exercises: Rigid Motions Preserve Angle Measure
Work through each section in order. A rigid motion is a translation, reflection, or rotation. For each problem, decide what the angle-preservation property tells you before measuring or computing. Show your work where indicated.
Grade 8·21 problems·~30 min·Common Core Math - Grade 8·standard·8-g-a-1b
Work through problems with immediate feedback
A
Fluency Practice
Apply each transformation and verify the angle-preservation property. Use the measure of the original angle to predict the measure of the image.
1.
An obtuse angle measuring is translated by the rule . What is the measure of the image angle, in degrees?