Review 8.1 to 8.3

Front

What is the sum of the interior angles of a polygon with 10 sides?

Back

The sum of the interior angles is 1440 degrees.

Front

How do you find the value of y in an equation?

Back

You isolate y on one side of the equation.

Front

What is a parallelogram?

Back

A quadrilateral with opposite sides that are both parallel and equal in length.

Front

What theorem states that if the diagonals of a quadrilateral bisect each other, it is a parallelogram?

Back

The Diagonal Bisector Theorem.

Front

How many sides does a polygon have if the sum of its interior angles is 720 degrees?

Back

It has 6 sides.

Front

What is the formula to find the sum of the interior angles of a polygon?

Back

(n - 2) × 180, where n is the number of sides.

Front

What does it mean for two lines to be parallel?

Back

They never intersect and are always the same distance apart.

Front

What is the value of v if it is given as 1 in an equation?

Back

v = 1.

Front

How do you determine if a quadrilateral is a parallelogram using opposite sides?

Back

If one pair of opposite sides are both congruent and parallel, it is a parallelogram.

Front

What is the value of x if x + 130 = 260?

Back

x = 130.