Triangle Sum/Inequality Theorem

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

• 360 degrees

• 180 degrees

• 90 degrees

• 540 degrees

Tags

TEKS.MATH.7.11C

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

What is the measure of angle a?

• 180

• 60

• 30

• 50

Tags

TEKS.MATH.7.11C

Do the following side lengths form a triangle?
2 inches, 2 inches, 4 inches

• Yes
• No

Tags

CCSS.7.G.A.2

Can the following side measures form a triangle?
  4 cm, 7 cm, 10 cm 

• Yes
• No

Tags

CCSS.7.G.A.2

Could a triangle with these side lengths exist?
33, 16, 17

• Yes
• No
• I don't know.

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

Which of the following does not represent the lengths of the sides of a triangle?

• 2 cm, 6 cm, 7 cm
• 5 cm, 2 cm, 5 cm
• 5 cm, 5 cm, 8 cm
• 3 cm, 10 cm, 15 cm

Tags

CCSS.7.G.A.2

If the given side lengths of a triangle are 16 and 10 which can NOT be the third side?

• 25

• 22

• 27

• 21

Tags

CCSS.7.G.A.2

Is it possible to draw a triangle with the following angle measures: 45 degrees, 120 degrees, and 15 degrees?

• Yes

• No

Tags

CCSS.7.G.A.2