Triangle Interior Angle Sum Quiz

What is the sum of the interior angles of a triangle?

• 90 degrees

• 180 degrees

• 270 degrees

• 360 degrees

Tags

CCSS.8.G.A.5

If one angle of a triangle is 45 degrees and the second angle is 60 degrees, what is the measure of the third angle?

• 30 degrees

• 100 degrees

• 75 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

What are the properties of an equilateral triangle?

• Two equal sides and two equal angles

• Three equal sides and three equal angles

• Four equal sides and four equal angles

• One equal side and one equal angle

Tags

CCSS.4.G.A.2

What are the properties of an isosceles triangle?

• Two sides of equal length and two equal internal angles

• Two sides of equal length and one unequal internal angle

• One side of equal length and two equal internal angles

• Three sides of equal length and three equal internal angles

Tags

CCSS.4.G.A.2

What are the properties of a scalene triangle?

• All sides are equal

• Two sides are equal

• All sides and angles are different

• All angles are equal

Tags

CCSS.4.G.A.2

If two angles of a triangle are 30 degrees and 60 degrees, what is the measure of the third angle?

• 45 degrees

• 180 degrees

• 90 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

What is the sum of the angles in an equilateral triangle?

• 180 degrees

• 120 degrees

• 90 degrees

• 270 degrees

Tags

CCSS.8.G.A.5

What is the sum of the angles in an isosceles triangle?

• 270 degrees

• 90 degrees

• 120 degrees

• 180 degrees

Tags

CCSS.8.G.A.5

What type of angle is shown?

• acute
• obtuse
• right
• straight

Tags

CCSS.4.G.A.1

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Tags

CCSS.7.G.B.5