Geo MH -Predicting Sides of a Triangle

There are three sides in a figure: 12, 13, and 26. Determine whether they can form a triangle and why.

• a) No, because 12+13=25<26
• b) Yes, because 13+26=39>12
• c) No, because 26-12=14<12

Tags

CCSS.7.G.A.2

Can the sides of a triangle have lengths 3, 8, and 9?

• Yes
• No

Tags

CCSS.7.G.A.2

Can the sides of a triangle have lengths 4, 11, and 13?

• Yes
• No

Tags

CCSS.7.G.A.2

Do the following side lengths form a triangle?
5, 6, 9

• Yes
• No

Tags

CCSS.7.G.A.2

Which could be the lengths of three sides of a triangle?

• A
• B
• C
• D

Describe the possible lengths for the third side of the triangle given the two sides 10 and 5.

• 5 < x 10
• 0 < x < 10
• 0 < x < 15
• 5 < x < 15

Tags

CCSS.HSA.CED.A.3

Two sides of a triangle are 16 and 32. Find possible lengths for the third side.

• a) 16 < x < 48
• b) 17 < x < 48
• c) 18 < x < 47
• d) 16 < x < 47

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.3

CCSS.HSA.REI.B.3

Describe the possible lengths for the third side of the triangle given the two sides 9 and 22.

• 13 < x < 31
• 13 > x > 31
• 31 > x < 13
• 31 < x < 13

Which of the following would NOT work to make a triangle with the two side lengths of 2 and 6?

• 6
• 7
• 5
• 4

Tags

CCSS.7.G.A.2

What is the range of values the third side of the triangle could be?

• A
• B
• C
• D