# Parallelograms

## By yaymath

YouTube presents Parallelograms, an educational video resource on math.

# Properties of parallelograms

## By MathPlanetVideos

Find the length of EF in the parallelogram

# Parallelogram Properties

## By Textbook Tactics

YouTube presents Parallelogram Properties, an educational video resource on math.

# Geometry: 6-3 Conditions for Parallelograms

## By Sir Tyler Tarver

How to prove that a given quadrilateral is a parallelogram. The great bambino.

# Properties of parallelogram

## By CBSE

PROPERTIES OF PARALLELOGRAM A parallelogram is a four-sided flat shape whose opposite sides are both equal and parallel. Parallelogram has a special property of opposite sides being parallel and opposite angles being equal. A parallelogram is a quadrilateral, in which diagonals bisect each other.

# Finding area of Parallelogram using determinants. - YouTube

## By TheCalculusGeek

Finding area of Parallelogram using determinants. - YouTube

# Determinant and area of a parallelogram | Matrix transformations | Linear Algebra | Khan Academy

Realizing that the determinant of a 2x2 matrix is equal to the area of the parallelogram defined by the column vectors of the matrix. All Khan Academy content is available for free at www.khanacademy.org

# Proof: Diagonals of a parallelogram bisect each other | Quadrilaterals | Geometry | Khan Academy

This video shows us how we can show that the diagonals of a parallogram bisect each other, and that any quadrilateral whose diagonals bisect each other MUST be a parallelogram.

# Parallelogram, triangles etc

## By MathPlanetVideos

Find the area of the triangle

# Parallelogram on the coordinate plane

Remember our discussion of the coordinate plane? Sure you do! Let's graph the given coordinates of three of the polygon vertices and find where the 4th vertex is.

# Quadrilateral problems on the coordinate plane

Learn how to find the area of a parallelogram on the coordinate plane.

Sal proves that opposite angles of a parallelogram are congruent.

Is a kite a quadrilateral? Is it a rhombus? A parallelogram? Let's find out.

# Geometry problems on the coordinate plane

Watch Sal classify a quadrilateral as a square, rhombus, rectangle, parallelogram, or trapezoid given its four vertices.

Discover attributes and features of four-sided shapes, including parallelograms, rhombuses, rectangles, and squares.

Discover attributes and features of four-sided shapes, including parallelograms, rhombuses, rectangles, and squares.

# Quadrilateral overview | Perimeter, area, and volume | Geometry | Khan Academy

Quad means four and lateral means line. A quadrilateral is literally a shape with four sides (lines) and four angles. Let's learn the difference between concave and convex quadrilaterals as well as trapezoids, parallelograms, and rhombi.

"Quad" means "four" and "lateral" means "line." A quadrilateral is literally a shape with four sides (lines) and four angles. Let's learn the difference between concave and convex quadrilaterals as well as trapezoids parallelograms and rhombi.