In that case, it would be good to know WHAT is given. If NOTHING is given, you really can't calculate.
The area of a trapezium is found because: 0.5*(sum of parallel sides)*height = area
The information given describes a square and not a trapezium. Area of the square = 3*3 = 9 square cm
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 side of the trapezium are a and b and height of the trapezium (the distance between the parallel sides) is h then the area is given by:Area = 1/2 (a + b) x hHalf the sum of the lengths of the parallel sides times the distance between them.
Multiply the base*height*width.
bigger base + smaller base x height/2
The formulae are quite similar; you multiply base x height, where the height is perpendicular to the base. In the case of a trapezium, you need to calculate the average of the two bases first.
The area of a trapezium is found because: 0.5*(sum of parallel sides)*height = area
the sides ofn trapezium are 11.3cm 14.5cm, 11.1cm, and 6.5cm. The perpendicular height is 10.4cm calculate the are giving your answer to an appropriate degree accuracy try this instead 1/2*(Area of top + Area of bottom)*Height
The information given describes a square and not a trapezium. Area of the square = 3*3 = 9 square cm
Multiply the height by the width
trapezium surface area = 1/2 * (parallel-side-1 + parallel-side-2) * height = 13/2 * height height (assuming isosceles trapezium) = sqrt (10 squared - (3/2) squared) = sqrt (100 - 9/4) ~ 10 area ~ 65 cm squared.
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 side of the trapezium are a and b and height of the trapezium (the distance between the parallel sides) is h then the area is given by:Area = 1/2 (a + b) x hHalf the sum of the lengths of the parallel sides times the distance between them.
base times height divide 2
The answer will depend on the shape that you are considering.
Multiply the base*height*width.