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Describe what Pi is and explain how it is used in finding the circumference of a circle. |
Answer» The diameter is the distance across a circle through the CENTRE and it TOUCHES the two points of the circle perimeter. π shows the RATIO of the perimeter of a circle to the diameter. Therefore, when you divide the circumference by the diameter for any circle, you obtain a value close enough to π.Circumference of Circle: 2πrPerimeter of semi-circle: πrArea of semi-circle: πr2/2Area of circle: πr2вrαínlíѕt |
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