CK-12 Geometry-Concepts

http://www.ck12.org Chapter 1. Basics of Geometry

2. a) Neither

b) Yes

c)S

d) Any combination ofP,O,T, andQwould work.

3. It does not matter the placement ofAorBalong the line nor the direction that

−→

CDpoints.

4. The first three figures intersect at a point,P,QandR, respectively. The fourth figure, two planes, intersect in a
   line,l. And the last figure, three planes, intersect at one point,S.

Interactive Practice

MEDIA

Click image to the left for use the URL below.

URL: http://www.ck12.org/flx/render/embeddedobject/

Explore More

1. Name this line in two ways.


2. Name the geometric figure below in two different ways.


3. Draw three ways three different planes can (or cannot) intersect.


4. What type of geometric object is made by the intersection of a sphere (a ball) and a plane? Draw your answer.