IMath 2 wk 1

Front

What are the values of the variables in the equation where w + x + y + z = 211 and w = 31?

Back

w = 31, y = 65, x = 65, z = 115.

Front

If lines a and b are parallel and lines c and d are also parallel, what can be said about the angles formed when a transversal crosses these lines?

Back

The angles formed are corresponding angles, alternate interior angles, and same-side interior angles.

Front

What is the measure of angle 10 if angle 7 measures 110 degrees and lines a and b are parallel?

Back

m∠10 = 70 degrees.

Front

What type of angles are ∠2 and ∠10 if they are formed by two parallel lines cut by a transversal?

Back

∠2 and ∠10 are corresponding angles.

Front

How do you find the value of x in the equation x + y = 90 if y = 50?

Back

x = 90 - y; therefore, x = 40.

Front

What is the relationship between the angles formed by two parallel lines cut by a transversal?

Back

The angles are either corresponding, alternate interior, or same-side interior angles.

Front

If x = 65° and z = 30°, what is the relationship between these angles in a triangle?

Back

They are the measures of two angles in a triangle, and the third angle can be found using the triangle sum theorem.

Front

What is the triangle sum theorem?

Back

The triangle sum theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

If two angles are supplementary, what is the relationship between their measures?

Back

The sum of the measures of supplementary angles is 180 degrees.

Front

What is the definition of corresponding angles?

Back

Corresponding angles are pairs of angles that are in the same position on two parallel lines cut by a transversal.