Accelerated Geometry Semester 1 Notecards

Created by 14dudbet 

Upgrade to
remove ads

Ext. Sides Adj. Acute ∠s ⊥, complementary

if the exterior side of two adjacent acute ∠s are ⊥, then the ∠ are complementary ∠

The sum of the measures of the exterior angles of any convex polygon, one angle at each vertex, is 360.

in triangle abc, the measures of the ext. ∠s = 360.
in parallelogram abcd, the measures of the ext. ∠s = 360

ASA

if two ∠s and the included side of one triangle are ≅ to to ∠s and the included side of another triangle, then the triangles are ≅

SAS

if two sides and the included ∠ of one triangle are congruent to two sides and the included ∠ of another triangle, then the triangles are ≅

SSS

if three sides of one triangle are ≅ to three sides of another triangle, then the triangles are ≅

Properties of Equilateral/Equiangular Triangles

-an equiangular triangle is also equilateral
-an equiangular triangle is also equilateral
-an equilateral triangle has 3 60 degree angles

AAS

If two angles and a non-included side of one triangle are ≅ to the corresponding parts of another triangle, then triangles are ≅

Base Angles Converse

if 2 sides of a triangles are ≅, then the sides opposite those angles are ≅

Base Angles Theorem

if two sides of a triangle are ≅, then the ∠s opposite those sides are also ≅

Third Angles Theorem

if two angles of a triangle are ≅ to two ∠s of another triangle, then the third angles are ≅

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again

Example:

Reload the page to try again!

Reload

Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording

Create Set