CK-12 Geometry Concepts
http://www.ck12.org Chapter 1. Basics of Geometry 1.4 Midpoints and Segment Bisectors Here you’ll learn what a midpoint, a segme ...
1.4. Midpoints and Segment Bisectors http://www.ck12.org MEDIA Click image to the left for more content. BecauseAB=BC,Bis the mi ...
http://www.ck12.org Chapter 1. Basics of Geometry ( 9 +(− 5 ) 2 , − 2 + 14 2 ) = ( 4 2 , 12 2 ) = ( 2 , 6 ) Example C IfM( 3 ,− ...
1.4. Midpoints and Segment Bisectors http://www.ck12.org Guided Practice Which line is the perpendicular bisector ofMN? Findxan ...
http://www.ck12.org Chapter 1. Basics of Geometry Given the midpoint(M)and either endpoint ofAB, find the other endpoint. 14.A(− ...
1.5. Angle Measurement http://www.ck12.org 1.5 Angle Measurement Here you’ll learn how to measure an angle with a protractor and ...
http://www.ck12.org Chapter 1. Basics of Geometry For every angle there is a number between 0◦and 180◦that is the measure of the ...
1.5. Angle Measurement http://www.ck12.org Using the Angle Addition Postulate,m^6 QRT= 15 ◦+ 30 ◦= 45 ◦. Example D Draw a 135◦an ...
http://www.ck12.org Chapter 1. Basics of Geometry For questions 3-6, determine if the statement is true or false. For an angle^ ...
1.6. Angle Classification http://www.ck12.org 1.6 Angle Classification Here you’ll learn how to classify angles based on their m ...
http://www.ck12.org Chapter 1. Basics of Geometry Example A Name the angle and determine what type of angle it is. The vertex is ...
1.6. Angle Classification http://www.ck12.org Two angles always add up to be greater than 90◦. 180◦is an obtuse angle. 180◦is a ...
http://www.ck12.org Chapter 1. Basics of Geometry 1.7 Complementary Angles Here you’ll learn what complementary angles are and h ...
1.7. Complementary Angles http://www.ck12.org 8 r+ 9 ◦+ 7 r+ 5 ◦= 90 ◦ 15 r+ 14 ◦= 90 ◦ 15 r= 76 ◦ r= 5. 067 ◦ However, this is ...
http://www.ck12.org Chapter 1. Basics of Geometry Practice Find the measure of an angle that is complementary to^6 ABCifm^6 ABCi ...
1.8. Supplementary Angles http://www.ck12.org 1.8 Supplementary Angles Here you’ll learn what supplementary angles are and how t ...
http://www.ck12.org Chapter 1. Basics of Geometry Supplementary angles add up to 180◦. Congruent angles have the same measure. D ...
1.8. Supplementary Angles http://www.ck12.org 2. 15◦ 3. 97◦ 4. 81◦ 5. 57◦ 6.(x−y)◦ 7.(x+y)◦ Use the diagram below for exercises ...
http://www.ck12.org Chapter 1. Basics of Geometry 1.9 Linear Pairs Here you’ll learn what linear pairs are and how they can help ...
1.9. Linear Pairs http://www.ck12.org ( 7 q− 46 )◦+( 3 q+ 6 )◦= 180 ◦ 10 q− 40 ◦= 180 ◦ 10 q= 220 ◦ q= 22 ◦ So, plug inqto get t ...
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