We can also measure angles in radians, however at GCSE we will always measure angles in degrees. The definition of R-squared is definitely fairly straight-forward it can be the percentage of the response variable variance that is certainly explained by a linear design. By using this website, you agree with our Cookies Policy. Ħ \times \pi = 6\pi (this is an answer in terms of pi)Ħ \times \pi = 18.8495592… (this answer is not in terms of pi)Įnsure you know how to correctly use the \pi button on your calculator. We make use of First and third party cookies to improve our user experience. This means you do not give the numerical answer that is produced when you multiply it by \pi. Sometimes the question may ask you to give the answer ‘in terms of \pi ’. You must only round at the end of the question and to the specified number of decimal places. When working with area you must always give the correct units squared You must have the radius to find the area of a circle from the formula.Ī question may not give you the radius directly and so we need to use the information given to find the radius first.
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