4. Circle the reflex angles. ما 5. Extend the arms of the angle marked with an arc. Then measure the angle. BONUS ▶Measure the other two angles in the triangle. Add the three angles. What is the sum of the angles in a triangle? 2. Use a protractor to check the triangle for right angles. Use a ruler to check it for equal sides. Then identify the triangle. BONUS ▶What is the measure of the angle marked with the arc? How can you tell without using a protractor? 3. Draw two non-congruent triangles. Use angle and size measures to explain why they are not congruent

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter1: Line And Angle Relationships
Section1.CR: Review Exercises
Problem 13CR
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4. Circle the reflex angles.
ما
5. Extend the arms of the angle marked with an arc.
Then measure the angle.
BONUS ▶Measure the other two angles in the triangle.
Add the three angles. What is the sum of the
angles in a triangle?
Transcribed Image Text:4. Circle the reflex angles. ما 5. Extend the arms of the angle marked with an arc. Then measure the angle. BONUS ▶Measure the other two angles in the triangle. Add the three angles. What is the sum of the angles in a triangle?
2. Use a protractor to check the triangle for right angles. Use a
ruler to check it for equal sides. Then identify the triangle.
BONUS ▶What is the measure of the angle marked with the arc?
How can you tell without using a protractor?
3. Draw two non-congruent triangles. Use angle and
size measures to explain why they are not congruent
Transcribed Image Text:2. Use a protractor to check the triangle for right angles. Use a ruler to check it for equal sides. Then identify the triangle. BONUS ▶What is the measure of the angle marked with the arc? How can you tell without using a protractor? 3. Draw two non-congruent triangles. Use angle and size measures to explain why they are not congruent
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