Properties of Figures - JSS1 Mathematics Past Questions and Answers - page 1

A rectangle is a quadrilateral with opposite sides of equal length and all angles at 90 degrees. In contrast, a square is a special type of rectangle where all sides are equal in length and all angles are 90 degrees. Thus, while all squares are rectangles, not all rectangles are squares.

An equilateral triangle has all three sides of equal length and all three angles are 60 degrees. This distinguishes it from other triangles, such as isosceles triangles (which have at least two sides of equal length) and scalene triangles (where all sides have different lengths).

Circles have numerous practical applications. For example, wheels (like those on bicycles and cars) are circular in shape, which allows for efficient rotation and movement. Additionally, many household items like plates and clocks are circular, making them easy to manufacture and use.