The area of a trapezium is equal to the product of the length of the median line by the height of the trapezium, or to half the product of the diagonals by the sine of the angle between them. A trapezium whose lateral sides are equal is called equilateral. Figure: t094020a Comments. In the English literature, a trapezium is also called a trapezoid. How to Cite This Entry: Trapezium. BSE-3.
WHAT YOU NEED: A ruler, pens, scissors and paper. 1 of 9 STEP 1 - TRAPEZIUM x 2: On a rectangular piece of paper, use a ruler to draw two angled lines from the bottom corners to make a trapezium.
Use the applet to discover the properties of the Trapezium. Move points B, C, D or E to change the size and shape of the Trapezium. Use the applet to discover the properties of the Trapezium. Move points B, C, D or E to change the size and shape of the Trapezium.
Area of a Trapezium Check that you can find the area of a trapezium and use the trapezium area formula for problem solving. Level 1 Level 2 Description Help More Areas. This is level 2: apply the trapezium area formula in different ways. You can earn a trophy if you get at least 7 questions correct and you do this activity online. The diagrams are not drawn to scale. The area of the trapezium.
Solution: Trapezium 1 is symmetrical and trapezium 2 is asymmetrical. Concave or convex: Whether their diagonals are internal or external is what makes them considered convex (all of their diagonals are internal) or concave (some diagonals are external). Exercise: Identify the concave and convex trapeziums. Hint: Look closely at the diagonal lines drawn on each figure. Try to see which ones.
Equilateral Areas. ABC and DEF are equilateral triangles of side 3 and 4 respectively. Construct an equilateral triangle whose area is the sum of the area of ABC and DEF.
What does trapezium mean? trapezium is defined by the lexicographers at Oxford Dictionaries as A type of quadrilateral., A bone in the wrist below the base of the thumb.
Properties of an isosceles trapezium; 17. Properties of a kite; 18. Properties of basic quadrilaterals; Previous Topic Next Topic. Previous Topic Previous slide Next slide Next Topic. This Course has been revised! For a more enjoyable learning experience, we recommend that you study the mobile-friendly republished version of this course. Take me to revised course. - or - Continue studying this.