Unit 5.8 & 5.9 Triangle Inequality

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

• Yes
• No

Tags

CCSS.7.G.A.2

9. Which of these lengths CANNOT represent the sides of a triangle?

• 32, 34, 60
• 28, 30, 58
• 13, 20, 27
• 2, 4, 5

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

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

• 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?
20, 10, 9

• 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

What is the range of values of x for a triangle's third side given side measures of 8 and 15?

• between 8 and 15
• between 7 and 23
• less than 7, greater than 23

What is the range of values of x for a triangle's third side given side measures of 4 and 12?

• between 8 and 16
• less than 4, greater than 12
• between 4 and 12