Surface area of a sphere. The surface area formula for a sphere is 4 x π x (diameter / 2) 2, where (diameter / 2) is the radius of the sphere (d = 2 x r), so another way to write it is 4 x π x radius 2.Visual on the figure below: A sphere's surface area can be calculated just by knowing its diameter, or radius (diameter = 2 x radius). π is, of course, the well-known mathematical constant
The 9-1 grading scheme was brought in alongside an overhaul of the curriculum in England in 2014. The rollout began in 2017 with three subjects - English language, English literature and maths
This time percentage calculator allows you to determine the percentage of one period of time compared to another. Enter the two periods of time you wish to compare and click on the 'Calculate' button to obtain the results.Answer: First of all divide 1.8 by 6 to give 0.3. Now 0.3 multiplied by ? gives 1.5. Find ? by dividing 1.5 by 0.3 to give an answer of 5. To figure out a fraction of a number, all you need to do is divide that number by the denominator of the fraction and then multiply that result by the numerator. . 236 270 331 198 429 303 5 499