2-dimensional shapes are flat. The perimeter of a 2D shape is the total distance around the outside of the shape. The area of a 2D shape is the space inside the shape.
Part of MathsGeometry and measure
The area of a trapeziumclosetrapeziumA quadrilateral with one pair of parallel sides. can be calculated using the formula:
\(\text{area of a trapezium} = \frac{1}{2}(a + b) \times h\)
Calculate the area of the trapezium:
area = \(\frac{1}{2}(4 + 10) \times 5 = 35~\text{cm}^2\)