1/2 = (a+b) H
This means:
Half x (a+b) x height
If you don't like working out the area of a trapezium , split the shape up into a triangle and a rectangle and work each bit out separately. Area = 1/2*(sum of parallel sides)*height
* * * * *
A better definition is
1/2*sum of parallel sides*perpendicular distance between them.
A more useful formula is
1/2*sum of parallel sides*perpendicular distance between them.
The reason that this is "better" will become when you learn the trapezium rule for approximating the area under a curve. The approximation is based on a whole lot of tall thin trapezia which are lined up vertically on the x-axis - like in a bar chart with no gaps between bars. So the parallel sides (a and b) are vertical, and the "height" is actually the width of the trapezium - and is measured in the horizontal direction.
0.5 * (a + b) * h
Simple. It is zero, since a six sided trapezium cannot exist! By definition, a trapezium is a quadrilateral and so it can have exactly four sides - no more, no fewer!
The area of a trapezium is found because: 0.5*(sum of parallel sides)*height = area
Let the two parallel sides be a and b, and the distance between them, the height of the trapezium, be h. Then: area of trapezium = 1/2 (a+b) h That is half the sum of the two parallel sides times the height of the trapezium.
If the two parallel sides are of length a and b, and the vertical distance between them is h then area = h*(a+b)/2 square units.
0.5 * (a + b) * h
Area of a trapezium = 0.5*(sum of parallel sides)*height
Area = 1/2*(sum of the parallel sides)*height
1 - (a+b) X h 2
Simple. It is zero, since a six sided trapezium cannot exist! By definition, a trapezium is a quadrilateral and so it can have exactly four sides - no more, no fewer!
1/2 x (sum of bases) x height
area of trapezium=1/2{a+b}h
Area = 0.5*(sum of parallel sides)*heightNote: A trapezium in the UK is known as a trapezoid in the USA
The area of a trapezium is found because: 0.5*(sum of parallel sides)*height = area
Let the two parallel sides be a and b, and the distance between them, the height of the trapezium, be h. Then: area of trapezium = 1/2 (a+b) h That is half the sum of the two parallel sides times the height of the trapezium.
Area = 0.5*(sum of parallel sides)*heightNote: A trapezium in the UK is known as a trapezoid in the USA
Area = a [(b1 + b2)/2]a = altitude (height) of the trapezoidb1 = length of one baseb2 = length of the other base