Missing Angles in Triangles

Find the measure of the missing angle in a triangle if the other two angles are 45° and 69°.

• 66°

• 70°

• 72°

• 65°

Tags

CCSS.8.G.A.5

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

• 30 degrees

• 60 degrees

• 90 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

If a triangle has one angle measuring 120 degrees, what type of triangle is it?

• acute triangle

• right triangle

• obtuse triangle

• scalene triangle

Tags

CCSS.4.G.A.2

If a triangle has angles measuring 40° and 100°, what is the measure of the third angle?

• 40 degrees

• 60 degrees

• 80 degrees

• 100 degrees

Tags

CCSS.8.G.A.5

How many equal sides does an equilateral triangle have?

• 2

• 3

• 4

• 1

Tags

CCSS.4.G.A.2

What do you call an angle greater than 90 degrees but less than 180 degrees?

• acute angle

• right angle

• obtuse angle

• straight angle

Tags

CCSS.4.G.A.1

What is the measure of each angle in an equilateral triangle?

• 45 degrees

• 60 degrees

• 90 degrees

• 120 degrees

Tags

CCSS.8.G.A.5

What is the relationship between the angles in a triangle?

• The sum of the angles in a triangle is always 180 degrees.

• The sum of the angles in a triangle is always 90 degrees.

• The sum of the angles in a triangle can vary depending on the type of triangle.

• The sum of the angles in a triangle is always 360 degrees.

Tags

CCSS.8.G.A.5

Find the measure of the missing angle in a triangle if the other two angles are 75° and 80°.

• 25°

• 30°

• 35°

• 40°

Tags

CCSS.8.G.A.5

What do you call an angle less than 90 degrees?

• obtuse angle

• right angle

• acute angle

• straight angle

Tags

CCSS.4.G.A.1