Geometry
Notes – Lesson 1.3
Name ___________________________
Vocabulary
Point: has _______ size. It is a ________________________
Space: the ________________ of all ________________________
Line: series of points that extends in _________ ___________________________ _________________________ without end.
Picture:
Symbol:
Collinear Points: Points that lie on the ________________ ____________________ .
Are the following sets of points collinear?
1.
and C
3.
and A
2.
B and F
Plane: is a ________________ ___________________________ with no _______________________________
Coplanar: Points and lines in the same __________________________.
Refer to the diagram at the right.
4. Name plane P in another way.
5. Name plane Q in another way.
6. Are A and C collinear?
7. Are D, A, B, and C coplanar?
8. Are D and C collinear?
9. Are planes P and Q coplanar?
10. Are
and plane Q coplanar?
11. Are B and C collinear?
Postulates – is an accepted statement or fact.
1) Through any ___________ _________________ there is
exactly _____________ ____________________.
2) If two lines intersect, then they intersects in exactly
_____________ ______________________.
3) If two planes intersect, then they intersect in exactly
__________ _____________________.
Find the intersection of the following lines and planes in the figure at the right.
12.
and
13. planes GLM and LPN
14. planes GHPN and KJP
15. planes HJN and GKL
16.
and plane KJN
17.
and plane GHL
4) Through any ___________ ___________________________ points there is exactly ___________ __________________.