Angles and Triangles

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

• 270 degrees

• 180 degrees

• 360 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

If one angle of a triangle measures 45 degrees, and another angle measures 65 degrees, what is the measure of the third angle?

• The measure of the third angle is 80 degrees.

• The measure of the third angle is 70 degrees.

• The measure of the third angle is 110 degrees.

• The measure of the third angle is 60 degrees.

Tags

CCSS.8.G.A.5

What type of angle measures exactly 90 degrees?

• Obtuse angle

• Acute angle

• Straight angle

• Right angle

Tags

CCSS.4.G.A.1

If one angle of a triangle measures 60 degrees, and another angle measures 80 degrees, what is the measure of the third angle?

• 100 degrees

• 120 degrees

• 90 degrees

• 40 degrees

Tags

CCSS.8.G.A.5

What is the name of a triangle with all sides of different lengths?

• Isosceles triangle

• Scalene triangle

• Equilateral triangle

• Right triangle

Tags

CCSS.4.G.A.2

If one angle of a triangle measures 30 degrees, and another angle measures 60 degrees, what is the measure of the third angle?

• The measure of the third angle is 90 degrees.

• The measure of the third angle is 180 degrees.

• The measure of the third angle is 120 degrees.

• The measure of the third angle is 45 degrees.

Tags

CCSS.8.G.A.5

What is the name of a triangle with one angle measuring more than 90 degrees?

• Right triangle

• Acute triangle

• Obtuse triangle

• Equilateral triangle

Tags

CCSS.4.G.A.2

In an equilateral triangle, what is the measure of each angle?

• 90 degrees

• 45 degrees

• 120 degrees

• 60 degrees

Tags

CCSS.8.G.A.5

If one angle of a triangle measures 75 degrees, and another angle measures 45 degrees, what is the measure of the third angle?

• 90 degrees

• 120 degrees

• 30 degrees

• 60 degrees

Tags

CCSS.8.G.A.5

What is the name of a triangle where two sides are of equal length?

• Scalene triangle

• Isosceles triangle

• Equilateral triangle

• Right triangle

Tags

CCSS.4.G.A.2