What are the two formulas for calculating the circumference of a circle?
GCSE Maths - How to find the Area and Circumference of a Circle (Circles Part 1) #106
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Mathematics
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6th - 7th Grade
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Hard
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This video tutorial covers the concepts of circumference, diameter, and radius of a circle. It explains how to calculate the area and circumference using the formulas: area = πR² and circumference = 2πR or πD. The tutorial provides examples using both radius and diameter to demonstrate these calculations, emphasizing the relationship between radius and diameter. It also discusses the use of π, an irrational number, in these calculations and suggests using a calculator for precision.
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2 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
If the diameter of a circle is 10 centimeters, what is the radius?
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