Triangle Sum and Inequality Theorem

Can the following side measures form a triangle?
  3, 5, 8 

• Yes
• No

Tags

CCSS.7.G.A.2

Does a triangle with these side lengths exist?
15, 12, 9

• Yes
• No
• I don't know.

Tags

CCSS.7.G.A.2

Does a triangle with these
side lengths exist?
(Don't fall for this one.)
0, 11, 12

• Yes
• No
• I don't know.

Tags

CCSS.7.G.A.2

Will these three sides form a triangle?

• yes

• no

Tags

CCSS.7.G.A.2

Will these line segments form a triangle?

• yes

• no

Tags

CCSS.7.G.A.2

Determine if it is possible to form a triangle with the given side lengths. 7 yd, 8 yd, 9 yd

• yes
• no

Tags

CCSS.7.G.A.2

If two angles in a triangle are  $45\degree$  and  $\ 75\degree$ , what is the measure of the third angle?

•  $75\degree$  

•  $90\degree$  

•  $60\degree$  

•  $70\degree$  

Tags

CCSS.8.G.A.5

The sum of the interior angles in a triangle is ...

• 360 degrees

• 180 degrees

• 90 degrees

• 540 degrees

Tags

CCSS.8.G.A.5

What is the measure of the missing angle?

• 80

• 60

• 50

• 70

Tags

CCSS.8.G.A.5

A triangle has two angles that are 65 degrees and 50 degrees. What must the third angle be?

• 65

• 75

• 25

• 60

Tags

CCSS.8.G.A.5