Question

use the figure below for exercises 7-9

7. name two intersecting lines
8. name the intersection of planes QRBA and TSRQ
9. name three non collinear points



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Answer 1

In a plane geometry, points, lines and planes may or may not intersect.

• Two intersecting lines are QT and TD
• The intersection of planes QRBA and TSRQ is line QR
• Three non-collinear points are: Q, B and S

Intersecting lines

These are lines that have a point of intersection.

From the diagram, the following lines are intersecting lines

• QT and TD
• QR and RS
• AB and BC

Intersection of planes QRBA and TSRQ

This is the line where QRBA and TSRQ intersects

From the diagram, we can see that QRBA and TSRQ intersect at line QR

Three noncollinear points

These are points that are not on the same line.

Several points from the diagram are noncollinear, three of them are:

Points Q, S and B

Read more about points, lines and planes at:

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