A rectangle is a quadrilateral, which means it has four sides.

Here are the solutions to the mathematics questions: 1. A rectangle is a quadrilateral, which means it has four sides. The correct option is (b) 4. 2. By definition, a square is a special type of rectangle where all four sides are of equal length. The correct option is (c) equal. 3. This question asks for an item that is NOT an example of a square (or a cube, which has square faces). (a) Matches box: Typically a rectangular prism (cuboid), whose faces are rectangles, not necessarily squares. (b) Maggi (cube): Refers to a bouillon cube, which is a cube and has square faces. (c) Cube: A 3D shape with six square faces. (d) Choco milo: A beverage, not a geometric shape. Among the given options, a matches box is usually not a cube. The correct option is (a) Matches box. 4. A triangle is a polygon defined by three straight sides and three angles. The correct option is (c) 3. 5. This question asks to identify which option is not a type of triangle. (a) Equilateral, (b) Scalene, and (c) Obtuse are all classifications of triangles based on their sides or angles. (d) Pyramid is a three-dimensional geometric solid, not a type of triangle. The correct option is (d) Pyramid. 6. An equilateral triangle is defined as a triangle where all three sides are of equal length. The correct option is (a) equal sides. 7. A right-angle triangle (or right triangle) is a triangle that contains exactly one angle measuring 90 degrees. The correct option is (c) 1. That's 2 down. 3 left today — send the next one.