Complementary Angles

In a right triangle, what can you say about the angles?

• One angle is a right angle (90 degrees), and the other two angles are complementary to each other.

• All angles are acute and add up to 180 degrees.

• There are three right angles in a right triangle.

• The angles can be any combination of acute and obtuse.

Tags

CCSS.8.G.A.5

What are complementary angles?

• Two angles that add up to 90 degrees.

• Two angles that add up to 180 degrees.

• Two angles that are equal in measure.

• Two angles that are adjacent to each other.

Tags

CCSS.7.G.B.5

What is the relationship between complementary angles and right angles?

• Complementary angles are equal to each other.

• Complementary angles together form a right angle, which measures 90 degrees.

• Complementary angles are always obtuse angles.

• Complementary angles cannot form any angle.

Tags

CCSS.7.G.B.5

What is the measure of the complementary angle to 90 degrees?

• 45 degrees

• 0 degrees

• There is no complementary angle to 90 degrees, as it would require a negative angle to sum to 90.

• 90 degrees

Tags

CCSS.7.G.B.5

If one angle measures 30 degrees, what is the measure of its complementary angle?

• 45 degrees

• 60 degrees

• 75 degrees

• 90 degrees

Tags

CCSS.7.G.B.5

If angle A is 25 degrees, what is the measure of angle B if they are complementary?

• 65 degrees

• 55 degrees

• 70 degrees

• 75 degrees

Tags

CCSS.7.G.B.5

What is the sum of the measures of two complementary angles?

• 90 degrees

• 180 degrees

• 45 degrees

• 360 degrees

Tags

CCSS.7.G.B.5

If two angles are complementary and one angle is represented as x, what is the expression for the other angle?

• (90 - x)

• (90 + x)

• (180 - x)

• (x/2)

Tags

CCSS.7.G.B.5

How do you find the missing angle when given one angle in a complementary pair?

• Add the given angle to 90 degrees to find the missing angle.

• Subtract the given angle from 90 degrees to find the missing angle.

• Multiply the given angle by 2 to find the missing angle.

• Divide the given angle by 2 to find the missing angle.

Tags

CCSS.7.G.B.5

If one angle is 45 degrees, what is the other angle if they are complementary?

• 30 degrees

• 45 degrees

• 60 degrees

• 90 degrees

Tags

CCSS.7.G.B.5