CK-12 Geometry-Concepts

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines First, these two angles form a linear pair. Second, from the mar ...

3.2. Perpendicular Lines http://www.ck12.org MEDIA Click image to the left for use the URL below. URL: http://www.ck12.org/flx/r ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines Answers: If the two adjacent angles add up to 90◦, thenlandmare ...

3.2. Perpendicular Lines http://www.ck12.org 3. 4. 5. 6. 7. 8. 9. In questions 10-13, determine ifl⊥m. ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines 10. 11. 12. 13. Find the value ofx. 14. ...

3.2. Perpendicular Lines http://www.ck12.org 15. 16. 17. ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines 3.3 Corresponding Angles Here you’ll learn what corresponding an ...

3.3. Corresponding Angles http://www.ck12.org MEDIA Click image to the left for use the URL below. URL: http://www.ck12.org/flx/ ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines Remove the ruler and draw a transversal. Label the eight angles ...

3.3. Corresponding Angles http://www.ck12.org Draw the line from the arc intersections to pointB. From this construction, we c ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines Example C Using the picture above, list pairs of corresponding a ...

3.3. Corresponding Angles http://www.ck12.org Since they are corresponding angles and the lines are parallel, they must be cong ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines Are the lines parallel? Justify your answer. For 6-10, what do ...

3.4. Alternate Interior Angles http://www.ck12.org 3.4 Alternate Interior Angles Here you’ll learn what alternate interior angle ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines James Sousa: Proof of Alternate Interior Angles Converse Guidanc ...

3.4. Alternate Interior Angles http://www.ck12.org m^62 = 115 ◦because they are corresponding angles and the lines are parallel. ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines Given:landmand transversalt 6 3 ∼= (^66) Prove:l||m TABLE3.3: St ...

3.4. Alternate Interior Angles http://www.ck12.org List the pairs of alternate interior angles: Answers: First, findm^6 1. We ...

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines For 3-4, find the values ofx. 3. 4. For question 5, use the pict ...

3.4. Alternate Interior Angles http://www.ck12.org 7.m^64 = ( 3 x− 7 )◦andm^65 = ( 5 x− 21 )◦ 8.m^63 = ( 2 x− 1 )◦andm^66 = ( 4 ...