- Books Name
- class 7 Mathematics Book
- CBSE Class 7
Introduction to rectangle
A rectangle is a 4-sided flat shape with straight sides where all interior angles are right angles (90°).
Also opposite sides are parallel and of equal length.
In the above figure, ABCD is a rectangle where
AB = CD and BC = AD
Each interior angle is 90°.
Now, perimeter of a rectangle = 2(length + breadth)
Area of rectangle = length * breadth
Area,perimeter and diagonals
The rectangle is a quadrilateral, with equal opposite sides.
Area = Length × Breadth
Perimeter = 2(Length + Breadth)
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