The question needs to be more precise. As stated, the shape can be any polygon with an even number of sides.
P = 20cm
50
12
multiply the width by the length, e.g. 5cm= width, 4cm= length, 5x4= 20, 20cm squared
The surface covered by a two-dimensional shape is referred to as its "area." Area measures the extent of a shape's surface in square units, providing a quantitative representation of the space it occupies. Different shapes have specific formulas to calculate their area, such as length times width for rectangles or π times radius squared for circles.
20cm squared.
20cm squared
P = 20cm
50
3
12
Simply add the numbers up For example, If the area of a semicirce is 20cm squared and the area of a rectange is 25cm squared, then the total area would be 20 + 25 = 45
multiply the width by the length, e.g. 5cm= width, 4cm= length, 5x4= 20, 20cm squared
The surface covered by a two-dimensional shape is referred to as its "area." Area measures the extent of a shape's surface in square units, providing a quantitative representation of the space it occupies. Different shapes have specific formulas to calculate their area, such as length times width for rectangles or π times radius squared for circles.
10cm by 10cm (perimeter=40cm), 5cm by 20cm (perimeter=50cm), 50cm by 2cm (perimeter=104cm), 100cm by 1cm (perimeter=202cm). All of these rectangles' areas are 100cm2
You divide the shape into smaller shapes you can calculate, like rectangles and triangles. If the shape is irregular, you have to approximate, for example by dividing it into many narrow rectangles. This technique is called "integration".
If 20cm is the diameter then radius is 10cm and area = Pi * r2 = Pi * 100 = 314 to the nearest square centimetre.