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Geometry Name _______________________________ Date ___________ Measure Angles Label each angle as an acute angle, an obtuse angle, a right angle, or a straight angle. Use a protractor to find the measure of each angle. A. obtuse angle 165º B. right angle C. 90º acute angle 25º D. straight angle 180º Use a protractor to draw angle CDE with a measure of 85º. Label the vertex and the two endpoints. Show the angle measure. Use a protractor to draw angle JKL with a measure of 145º. Label the vertex and the two endpoints. Show the angle measure. © 2003 CompassLearning, Inc. Page 1 Activity 76266 Geometry Name _______________________________ Date ___________ Measure Angles Use a protractor to measure angle XYZ. What is the measure of angle XYZ? What is the measure of the complement of angle XYZ? 55º Use a protractor to measure angle STU. What is the measure of angle STU? What is the measure of the complement of angle STU? © 2003 CompassLearning, Inc. Page 2 70º 110º Use a protractor to measure angle NOP. What is the measure of angle NOP? What is the measure of the supplement of angle NOP? 45º 45º Use a protractor to measure angle HJK. What is the measure of angle HJK? What is the measure of the supplement of angle HJK? 35º 105º 75º Activity 76266 Name _______________________________ Date ___________ Geometry Measure Angles Use a protractor to measure each angle and write the angle measure. Circle the measures of the two angles that are complementary. A. 35º B. 125º C. 155º D. 55º Use a protractor to measure each angle and write the angle measure. Circle the measures of the two angles that are supplementary. A. 65º © 2003 CompassLearning, Inc. B. 135º C. Page 3 110º D. 45º Activity 76266 Name _______________________________ Date ___________ Geometry Measure Angles Two angles are complementary. One angle measures 32º. What is the measure of the second angle? 58º Two angles are supplementary. One angle measures 104º. What is the measure of the second angle? 76º Angle ABC measures 124º. Explain why angle ABC can have a supplementary angle but not a complementary angle. Sample Response: An angle that is less than 180º can have a supplement. The supplement of an angle measuring 124º is 66º. An angle that measures 124º cannot have a complement. Because angle ABC is greater than 90º, it can’t have a complementary angle. © 2003 CompassLearning, Inc. Page 4 Activity 76266
