The diameter of a sphere is 8 cm. It is melted and drawn into a wireof diameter 3 mm. The length of скачать в хорошем качестве

The diameter of a sphere is 8 cm. It is melted and drawn into a wireof diameter 3 mm. The length of

In this math tutorial from Open Eye 4 TNPSC, we solve a mensuration problem commonly found in TNPSC and other competitive exams. The problem involves a sphere with a diameter of 8 cm that is melted and reshaped into a wire with a diameter of 3 mm. We demonstrate how to find the length of the resulting wire. Key Topics Covered: Conservation of Volume: Understanding why the volume of the sphere equals the volume of the cylindrical wire. Unit Conversion: Crucial steps to convert centimeters and millimeters into meters to match the final answer options. Formulas Used: Volume of a sphere (V = 4/3 pi r^3) and Volume of a cylinder (V = pi r^2 h). Step-by-Step Calculation: A clear walkthrough of the algebra and arithmetic required to find the height (length) of the wire, which is approximately 37.9 meters. This video is perfect for aspirants of TNPSC Group 4, Group 2, and other government recruitment exams who want to master geometry and mensuration concepts.