CK12 - Geometry

Model:the spineof a bookwherethe front and backcoversjoin

Answers

1.

and

Yes

Given

Reflexive

Substitution

Segmentadditionpostulate

Substitution

Yes. It’s giventhat (so ). Since and then

mustbe equalto , and this wouldmake a rectangle.

6.

7.

Given

AngleAdditionPostulate

Substitution

Definitionof congruentangles