Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
|
the sum of the interior angles of a triangle is
|
180'
|
|
|
the acute angles of a right triangle are
|
complementary
|
|
|
each angles of an equilateral triangle is ...
|
60'
|
|
|
if 2 angles of one triangle are equal to 2 angles of another triangle, than the third angles are
|
congruent
|
|
|
in a triangle there can be at most one _______ angle and one ______ angle.
|
right, obtuse
|
|
|
polygons are formed by ______ sides
|
coplanar
|
|
|
eleven sided polygon
|
hendecagon
|
|
|
twelve?
|
dodecagon
|
|
|
twenty?
|
isosagon
|
|
|
n...?
|
n-gon
|
|
|
diagonal
|
segment hat joins non-consecutive vertices (like a star within a pentagon)
|
|
|
the sum of interior angles formula
|
(n-2)180
|
|
|
sum of exterior angles is always
|
360
|
|
|
regular polygon is both ____ and ___.
|
equilateral
equiangular |
