Lengths That Make a Triangle

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

• 32, 34, 60

• 28, 30, 58

• 13, 20, 27

• 2, 4, 5

If the longest side of the triangle was 10. Then the two shorter sides must have a sum that is ....?

• any length

• equal to 10

• greater than 10

• less than 10

Mrs. Barto has a pet rabbit and wants to build a pen for it. She has 3 pieces of lumber: 3ft, 7ft, and 8ft. Can she build a closed triangular pen with these three boards? (Will these three sides make a triangle?)

• Yes

• No

What is the measure of the missing angle?

• 82

• 43

• 55

• 180

Which of the following side measures form a triangle?

• 4, 6, 10

• 4, 6, 9

• 4, 6, 11

• 2, 4, 6

Do the following lengths form a triangle

• Yes

• No

Which of the following side lengths form a triangle?

• 1, 2, 3

• 5, 7, 8

• 6, 6, 14

• 80, 20, 50

Can the following 3 numbers be side measures of a triangle

• Yes

• No

AB = 4cm BC = 3 cm

• Unique Triangle (1 triangle)

• More than one triangle

• Not Possible ( 0 triangles)

How many triangles can you make if m∠A = 84, a = 18 and b = 19

• 0

• 1

• 2

• Infinitely Many