Rectangle: A quadrilateral with four right angles. Each angle measures exactly 90 degrees, ensuring the shape has four corners that are all right angles.
Quadrilateral: A polygon with four sides. A rectangle is a specific type of quadrilateral distinguished by its right angles and side properties.
Opposite sides: Sides that are across from each other in a polygon. In a rectangle, the opposite sides are equal in length and parallel.
Parallel sides: Sides that are always the same distance apart and never meet, no matter how far they extend. In a rectangle, the pairs of opposite sides are parallel.
A rectangle has four right angles, each measuring 90 degrees. This means all four corners are perfect right angles, giving the shape its characteristic appearance.
Opposite sides of a rectangle are equal in length, meaning the side across from each other are the same size.
The opposite sides of a rectangle are parallel to each other, which means they run in the same direction and will never intersect.
The perimeter of a rectangle can be calculated by adding twice the length and twice the width, or equivalently, by the formula: perimeter = 2 × (length + width).
1. How does the number of lines of symmetry in a rectangle compare to the number of lines of symmetry in a circle?
2. What is a key property of all angles in a rectangle?
3. How can you determine if a rectangle will fit into a space that measures 10 meters in length and 4 meters in width?
Rectangle — definition?
Quadrilateral with four right angles.
Angles in a rectangle — measure?
All four are 90 degrees.
Opposite sides — equal?
Yes, they are equal and parallel.
Rectangle symmetry — lines?
Vertical and horizontal axes.
Sides — congruent pairs?
Opposite sides are congruent.
Interior angle sum?
360 degrees.
La hoja de repaso cubre los conceptos esenciales de Mastering Rectangle Properties. Está organizada por temas para facilitar el aprendizaje y la memorización, con definiciones clave, explicaciones y resúmenes.
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