6.8A, I can explain why three sides form a triangle

Which of the following measures form a triangle?

• 15, 12, 18

• 5, 6, 21

• 3, 4, 12

• 12, 13, 33

Tags

CCSS.7.G.A.2

Which of the following measures form a triangle?

• 22, 23, 43

• 5.5, 6.5, 20

• 1, 2, 3

• 3, 4, 10

Tags

CCSS.7.G.A.2

If two sides of a triangle measure 25 and 15 feet, what measure for the longest side makes it -NOT- a triangle?

• 45

• 33

• 37

• 25

If two sides of a triangle measure 15 and 5 feet, what measure for the longest side makes it -NOT- a triangle?

• 23

• 18

• 12.5

The lengths of two lines are as follows:

2.25 in. + 5.55 in.

What length should the third line be to make a triangle?

• less than 6.5 in.

• less than 7.8 in.

• greater than 8.7 in.

• greater than 7.8 in.

The lengths of two lines are as follows:

13.25 in. + 2.55 in.

What length should the third line be to make a triangle?

• less than 14.5 in.

• less than 15.8 in.

• greater than 16.7 in.

• greater than 15.8 in.

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

• Yes
• No

Tags

CCSS.7.G.A.2

Will these three sides form a triangle?

• yes

• no