Triangle inequality and interior angles of Polygons

Name this triangle

• Acute, Scalene
• Obtuse, Scalene
• Right, Isosceles
• Acute, Equilateral

Tags

CCSS.4.G.A.2

Classify the following triangle in as many ways as possible. 

• Right, Equilateral
• Obtuse, Scalene
• Obtuse, Equilateral
• Right, Scalene

Tags

CCSS.4.G.A.2

Which type of triangle is pictured?

• Equilateral Triangle
• Right Isosceles Triangle
• Obtuse Scalene Triangle
• Obtuse Equilateral Triangle

Tags

CCSS.4.G.A.2

An angle whose measure is exactly 90 degrees.

• acute
• vertical
• right
• straight

Tags

CCSS.4.G.A.1

Look at the sides of this triangle. What type of triangle is this?

• scalene
• acute
• equilateral
• isosceles

Tags

CCSS.4.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

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 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

Tags

CCSS.7.G.A.2

Does a triangle with these
side lengths exist?
(Don't fall for this one.)
0, 11, 12

• Yes
• No
• I don't know.

Tags

CCSS.7.G.A.2

Will these three sides form a triangle?

• yes

• no

Tags

CCSS.7.G.A.2