rectangle - Master This Word
Master this word with our 5-step learning method – Learn English in English
rectangle Word Meanings
- a four-sided figure with opposite sides equal
- a shape with two pairs of parallel sides
- a right-angled quadrilateral
rectangle Example Sentences
Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.
rectangle Phonetic & Pronunciation
UK
/rɛkˈtæŋ.ɡl/
US
/rɛkˈtæŋ.ɡl/
rectangle Word Etymology
rect- = right + angle = corner; Latin → Old French → English. Imagine a shape standing tall and proud, its corners sharp and right, like a sturdy building.
Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.
Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.
Read the FAQ explanation of Comprehensible InputReal Context
A rectangle is a four sided figure where opposite sides are parallel and equal in length, and every interior angle is a right angle. This makes it a type of parallelogram with the extra constraint of four right angles. In practical terms, rectangles are the shapes you get when you frame a door, outline a room, or draw a page with vertical and horizontal lines. The area is found by multiplying length by width, and the perimeter by adding all four sides. In math and design, the rectangle is a dependable unit for proportions, grids, and alignment, because its long straight edges simplify measurement and construction.
Usage Reminders
- • A rectangle has four right angles. • Opposite sides are parallel and equal. • Length and width name different directions. • Area = length × width; perimeter = 2 × (length + width). • A square is a special rectangle, not the other way around.
Common Misconceptions
- A square is not a rectangle.
- A rectangle must have all sides equal.
- A rectangle cannot be rotated or tilted.
- Area is length plus width.
- Rectangles and parallelograms are the same thing.
Thinking Differences
English speakers typically think of length and width as two distinct directions and rely on area and perimeter as standard formulas; common mistakes include swapping length and width or assuming a square is not a rectangle.
Learning Tips
- Visualize with a grid to separate length and width
- Remember area = length × width and perimeter = 2 × (length + width)
- Distinguish rectangle from square and from other quadrilaterals
- Keep opposite sides parallel and equal in your drawings
- Use consistent naming for the sides (length vs width)
- Practice with real objects (doors, screens, tiles)
5-Step Learning Method - Learn English in English
Step 1: Meaning
What is the meaning of the word 'rectangle'?
A.A type of fruit
B.An object used for writing
C.A shape with four sides and four right angles
D.A musical instrument
Step 2: Usage
Which of the following sentences uses 'rectangle' correctly?
A.The room had a rectangle-shaped table in the center.
B.He drew a square and a triangle on the paper.
C.She played the rectangle beautifully.
D.The circle was perfect for the painting.
Step 3: Similar Words
Which word is a synonym of 'rectangle'?
A.Circle
B.Oval
C.Triangle
D.Square
Step 4: Opposite Words
What is the opposite of 'rectangle'?
A.Round
B.Straight
C.Curve
D.Point
Step 5: Mastery
In what real-life context would you commonly see a rectangle?
A.In a cooking recipe
B.On a computer screen as a window
C.On a sports field
D.In a music concert
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