Solving Problems using Angle Relationships

Front

What is the sum of angles in a triangle?

Back

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

Front

If two angles are complementary, what is their sum?

Back

The sum of two complementary angles is 90 degrees.

Front

If two angles are supplementary, what is their sum?

Back

The sum of two supplementary angles is 180 degrees.

Front

What is the value of m if m + 43 = 90?

Back

m = 47.

Front

What is the value of n if m = 47 and n + m = 90?

Back

n = 43.

Front

Solve for k: 2k + 110 = 180.

Back

k = 35.

Front

What is the value of r if r + 25 = 180?

Back

r = 155.

Front

Solve for x: 12x + 3x + 60 + 90 = 360.

Back

x = 14.

Front

What is the definition of vertical angles?

Back

Vertical angles are the angles opposite each other when two lines cross. They are always equal.

Front

What is the definition of adjacent angles?

Back

Adjacent angles are two angles that share a common side and a common vertex.