Geometry A Unit 5

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides that are parallel and equal in length.

Front

What are the properties of a parallelogram?

Back

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

Front

How do you find the value of x in a parallelogram?

Back

Set the equations for opposite sides equal to each other and solve for x.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle with at least two sides of equal length.

Front

What is the sum of the interior angles of a quadrilateral?

Back

The sum of the interior angles of a quadrilateral is 360 degrees.

Front

What is the formula for the area of a parallelogram?

Back

Area = base × height.

Front

What does it mean for a polygon to be regular?

Back

A regular polygon has all sides and angles equal.

Front

What is the relationship between the angles in an isosceles triangle?

Back

The angles opposite the equal sides are also equal.

Front

How do you calculate the measure of an angle in an isosceles triangle?

Back

If the vertex angle is known, the base angles can be found using the formula: Base angle = (180 - vertex angle) / 2.

Front

What is the definition of equilateral?

Back

An equilateral polygon has all sides of equal length.