Triangles Review

Two sides of a triangle have side lengths of 17 meters and 12 meters.  What is the range of possible lengths for the third side?

• 12 < x < 17
• 12 < x < 29
• 5 < x < 17
• 5 < x < 29

Find the missing third angle.

• 55

• 5

• 65

• 85

Tags

CCSS.8.G.A.5

Pick all options that would classify the triangle.

• Isosceles

• Scalene

• Equilateral

• Acute

• Obtuse

Tags

CCSS.4.G.A.2

A triangular piece of wood has sides that are 9 inches, 15 inches, 7 inches long. Which of the following best describes this triangle?

• Equilateral
• Scalene
• Isosceles
• Obtuse

Tags

CCSS.4.G.A.2

What is the sum of the angles inside a triangle?

• 90
• 180
• 360

Tags

CCSS.8.G.A.5

One angle in a triangle is 36 degrees and another angle is 100 degrees.  What is the measure of the third angle?

• 54
• 44
• 34
• 90

Tags

CCSS.8.G.A.5

Which would be the best classification for the triangle shown?

• acute isosceles
• equiangular scalene
• equiangular isosceles
• equiangular equilateral

Tags

CCSS.4.G.A.2

Which would be the best classification for the triangle shown?

• acute isosceles
• right scalene
• acute scalene
• obtuse scalene

Tags

CCSS.4.G.A.2

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

Tags

CCSS.7.G.B.5

Classify the following triangle in as many ways as possible. 

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

Tags

CCSS.4.G.A.2