http://www.ck12.org Chapter 1. Basics of Geometry
- Find the midpoint between (3, 7) and (7, 11)
Answers:
- The perpendicular bisector must bisectMNand be perpendicular to it. Only
←→
OQsatisfies both requirements.←→
SR
is just a bisector.
The line shown is the perpendicular bisector. So, 3x− 6 = 21 , 3 x= 27 ,x=9. And,( 4 y− 2 )◦= 90 ◦, 4 y◦=
92 ◦,y= 23 ◦.
(
3 + 7
2
,
7 + 11
2
)
=
(
10
2
,
18
2
)
= ( 5 , 9 )
.
Interactive Practice
MEDIA
Click image to the left for use the URL below.
URL: http://www.ck12.org/flx/render/embeddedobject/113039Explore More
- Copy the figure below and label it with the following information:
(^6) A∼= (^6) C
(^6) B∼= (^6) D
AB∼=CD
AD∼=BC