Скачать или смотреть Measuring and Calculating the Surface Area and Volume of a Sphere

In this high school physics and geometry tutorial, I measure the diameter of a small wooden sphere using a metric ruler and calculate its surface area and volume. Starting with the definition of a sphere, I use the measured diameter to find the radius, then perform all the calculations step-by-step with a TI-84 Plus CE calculator. This hands-on example shows how geometry connects to real-world measurements and reinforces key formulas for three-dimensional solids.
Formulas used:
Surface Area = 4πr²
Volume = (4/3)πr³
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