jlgdr wrote:

shubhampandey wrote:

yogachgolf wrote:

Is quadrilateral Q a square?

(1) The sides of Q have the same length.

(2) The diagonals of Q have the same length

In a parallelogram, not all the sides have the same length from what I understand.

Or am I missing something?

Parallelogram CAN have all 4 sides of equal length.

Parallelogram A quadrilateral with two pairs of parallel sides.Properties and Tips• Opposite sides of a parallelogram are equal in length.

• Opposite angles of a parallelogram are equal in measure.• Opposite sides of a parallelogram will never intersect.

• The diagonals of a parallelogram bisect each other.• Consecutive angles are supplementary, add to 180°.•

The area,

A, of a parallelogram is

A = bh, where

b is the base of the parallelogram and

h is its height.

• The area of a parallelogram is twice the area of a triangle created by one of its diagonals.

A parallelogram is a quadrilateral with opposite sides parallel and congruent. It is the "parent" of some other quadrilaterals, which are obtained by adding restrictions of various kinds:• A rectangle is a parallelogram but with all angles fixed at 90°

• A rhombus is a parallelogram but with all sides equal in length

• A square is a parallelogram but with all sides equal in length and all angles fixed at 90°

For other properties check polygons chapter of Math Book:

math-polygons-87336.html
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