Angle Sum Triangle Inequality Theorems

360 degrees

180 degrees

90 degrees

540 degrees

$$75\degree$$  

$$90\degree$$  

$$60\degree$$  

$$70\degree$$  

have three angles that are the same measure

have three side lengths that are the same measure

have only acute angles

have three angles that are each 60 degrees

have three different side lengths

have two side lengths that are congruent

have two angles that are congruent

always have a 90 degree angle

obtuse

different

acute

equal

have three different angle mesures

have two side lengths that are congruent

have three different side lengths

always have one right angle

acute

congruent

obtuse

right

have one obtuse angle

three angles that are acute

one right angle

have three angles that are less than 90 degrees

one right angle

three acute angles

two right angles

three obtuse angles

acute

obtuse

right

scalene