CK-12 Geometry - Second Edition

http://www.ck12.org Chapter 3. Parallel and Perpendicular Lines

29.Given:l||m,s||tProve:^64 ∼=^610

30.Given:l||m,s||tProve:^62 ∼=^615

31.Given:l||m,s||tProve:^6 4 and^6 9 are supplementary

32. Find the measures of all the numbered angles in the figure below.

Algebra ConnectionFor 32 and 33, find the values ofxandy.

33.

34.

35.Error AnalysisNadia is working on Problem 31. Here is her proof:

TABLE3.4:

Statement Reason

1.l||m,s||t Given

2.^64 ∼=^615 Alternate Exterior Angles Theorem