Trapezium Trapezium is a four sided shape where two sides are parallel,side lengths and angles are not equal. The parallel sides are called bases and the non parallel sides are called legs Types of Trapezium Isosceles Trapezium: “The legs or the not parallel sides are equal.” Scalene Trapezium: “A trapezium with all the sides and […]
Square Square is a four sided shape which have all the sides of equal length and also the angles are equal, all 90°. The area and the perimeter of a square The area of a square is the plane surrounded by the sides. To find the area of the square we multiply side times side or […]
Congruent triangles Two triangles are congruent if all their corresponding angles have the same measure and all their corresponding sides have the same length. Four rules of proving that two triangles are congruent Rule 1: The SSS rule: Side-Side-Side rule The side-side-side rule states that if the three sides of a triangle are equal to the three sides of the […]
