# Do diagonals of a parallelogram divides it into 4 triangles of equal area?

## Do diagonals of a parallelogram divides it into 4 triangles of equal area?

We know that diagonals of parallelograms bisect each other. Therefore, O is the mid-point of diagonal AC and BD. BO is the median in ΔABC. Therefore, we can say that the diagonals of a parallelogram divide it into four triangles of equal area.

## Can a parallelogram be separated into four triangles?

If two lines parallel to sides of a parallelogram are constructed concurrent to a diagonal, then the parallelograms formed on opposite sides of that diagonal are equal in area. The diagonals of a parallelogram divide it into four triangles of equal area.

Does the diagonal of a parallelogram divides it into two congruent triangles?

Diagonal AC divides the parallelogram into two triangles △ABC and △ADC. In these two triangles, one side and two angles made on this side are equal. Therefore, it is proved that the diagonal of a parallelogram divides it into two congruent triangles and also opposite sides of a parallelogram are equal.

How many congruent triangles are formed when a diagonals of parallelogram is drawn?

two congruent triangles
Diagonals in Parallelograms A diagonal acts as a transversal and creates alternate interior angles with the parallel sides. When both diagonals are drawn, two pairs of congruent vertical angles are formed. When one diagonal is drawn in a parallelogram, two congruent triangles are formed.

### What is the diagonal of a parallelogram?

A parallelogram is a quadrilateral whose opposite sides are parallel and equal. The opposite sides being parallel and equal, forms equal angles on the opposite sides. Diagonals of a parallelogram are the segments which connect the opposite corners of the figure.

### Which parallelogram does the diagonal divide the parallelogram into two equal congruent right triangles?

Parallelogram Theorem #1: Each diagonal of a parallelogram divides the parallelogram into two congruent triangles. Parallelogram Theorem #2: The opposite sides of a parallelogram are congruent….Theorems about Quadrilaterals.

Statements Reasons
Parallelogram @\begin{align*}ABCD\end{align*}@ Given

What does each diagonal do to a parallelogram?

The diagonals of a parallelogram bisect each other. In any parallelogram, the diagonals (lines linking opposite corners) bisect each other. That is, each diagonal cuts the other into two equal parts.

What is a diagonal of a parallelogram?

The diagonals of a parallelogram are the connecting line segments between opposite vertices of the parallelogram. Using this formula we can find out the lengths of the diagonals only using the length of the sides and any of the known angles.

## How many congruent triangles are formed when a diagonal?

4 triangles
By the SSS Postulate, the 4 triangles formed by the diagonals of a rhombus are congruent.

## How many congruent triangles are formed by this diagonal?

Maths –Diagonal of a parallel divide it into two congruent triangles – Geometry, proof – YouTube.

Is diagonal of parallelogram equal?

Are the Diagonals of a Parallelogram Equal? The diagonals of a parallelogram are NOT equal. The opposite sides and opposite angles of a parallelogram are equal.

How are the diagonals of a parallelogram divided?

Show that the diagonals of a parallelogram divide it into four triangles of equal area. intersecting at O. Since the diagonals of a parallelogram bisect each other at the point of intersection. We know that the median of a triangle divides it into two equal parts.

### How are the four triangles in a parallelogram congruent?

They are congruent so the called it as 4 congruent triangles. Opposite pairs of triangles in a parallelogram are congruent. You can prove the opposite pairs of triangles congruent by SSS axiom but not the adjacent triangles. The area of the four triangles are same.

### How are two opposite pairs of triangles congruent?

First, we’ll repeat the proof that the 2 opposite pairs of triangles are congruent: (15) Area ΔOBC = Area ΔAOB // (13), (14), (8) , triangles with equal bases and heights. And so we have proven that the diagonals of a parallelogram divide it into four triangles, all of which have equal areas.

How are the equal areas of a triangle determined?

We already know that the opposite pairs of triangles (ΔAOD≅ ΔCOB; ΔAOB≅ ΔCOD) are congruent, and thus have equal areas. So if we can show that one of the other pairs also has equal areas, all four will be equal.