How To Calculate The Area Of An Oval
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An oval is a geometric shape that looks like an elongated circle. Another name for an oval is an 'ellipse'. You might be asked to recognize an oval shape in primary school, secondary school, and university. The area of an oval is the amount of space contained within it. You can calculate the area of an oval by following a simple mathematical equation.
You'll need:
- Tape measurer or ruler
- Calculator
Steps to follow:
Measure the length of the ellipse from 'A' to 'B' and divide it by 2. This is known as the 'semi-major axis' or 'radius 1'. The semi-major axis represents half of the longest diameter of the oval, which is crucial for determining its size.
Measure the width of the oval across its centremost point. The centre point is the middle point between 'A' and 'B'. Once you measure the width of the oval, divide this value by 2. This is known as the 'semi-minor axis' or 'radius 2'. The semi-minor axis is half of the shortest diameter of the ellipse, providing another critical dimension.
Multiply half of the width by half of the length. For example, if the length of the oval is 10 cm and the width is 6 cm, you would multiply 5 by 3 to get 15 cm2. This step helps in calculating the essential area before applying pi for the final result.
Multiply this figure from Step 2 by pi, which is approximately 3.14. Using the previous example, you would multiply 15 by 3.14 to get 47.1 cm2, which is the area of the ellipse. This result represents the total space enclosed within the oval shape.
Now that you know how to calculate the area of an oval, you might be interested in learning how to calculate the period of a wave. Understanding these basic mathematical concepts can be highly beneficial in various scientific applications.
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