7. We learned that in a plane, two lines perpendicular to the same line are parallel. Use the rectangular solid below to explain

Question

UNO [17]

4 years ago

8

7. We learned that in a plane, two lines perpendicular to the same line are parallel. Use the rectangular solid below to explain

why the words "in a plane" are needed.

Mathematics

2 answers:

Illusion [34] · Answer 1 · 2021-11-21T22:28:21+03:00

Illusion [34]4 years ago

6 0

Answer:

Step-by-step explanation:

hodyreva [135] · Answer 2 · 2021-11-21T23:28:38+03:00

Answer:

"In a plane" imposes the condition that these 3 lines exist in ONLY 2 dimensions, otherwise, the statement, "Two lines perpendicular to the same line are parallel" is false.

Example 1: lines CE & DF are // & perpendicular to CD. TRUE

Example 2: lines CE & BD are // & perpendicular to CD. FALSE

Step-by-step explanation:

hope this helped :P