Polygons, Parallelograms

Front

What is a polygon?

Back

A polygon is a closed figure formed by a finite number of straight line segments connected end to end.

Tags

CCSS.2.G.A.1

Front

Define a parallelogram.

Back

A parallelogram is a four-sided figure (quadrilateral) where opposite sides are parallel and equal in length.

Tags

CCSS.3.G.A.1

Front

What are the properties of a parallelogram?

Back

1. Opposite sides are equal in length. 2. Opposite angles are equal. 3. Diagonals bisect each other.

Tags

CCSS.HSG.CO.C.11

Front

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

Back

The sum of the interior angles of a polygon with n sides is (n-2) × 180°.

Front

If one angle of a parallelogram is 70°, what are the measures of the other angles?

Back

The opposite angle is also 70°, and the adjacent angles are 110° each.

Tags

CCSS.HSG.C.A.3

Front

What does it mean for diagonals to bisect each other in a parallelogram?

Back

It means that the diagonals divide each other into two equal parts.

Front

Which of the following is NOT a property of a parallelogram? Diagonals bisect each other, Diagonals are congruent, Both pairs of opposite sides are parallel, Both pairs of opposite angles are congruent.

Back

Diagonals are congruent.

Tags

CCSS.HSG.CO.C.11

Front

Find the value of x if the angles of a parallelogram are 112° and x°.

Back

x = 68°.

Tags

CCSS.HSG.CO.C.11

Front

What is the relationship between the opposite angles of a parallelogram?

Back

The opposite angles of a parallelogram are equal.

Tags

CCSS.HSG.C.A.3

Front

If two sides of a parallelogram are 10 cm and 15 cm, what are the lengths of the opposite sides?

Back

The opposite sides are also 10 cm and 15 cm.