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Fase 4 - Aplicar los conocimientos sobre los cilindros, conos y esferas Geometría del Espacio - Grupo: 551122_11 Tutor: Diego Leandro Leon Noviembre de 2020 Maria Judith Ruiz Geometrical body of revolution formed by rotating a semicircle around its diameter. THE SPHERE EXAMPLES Maximum circumference: Circumference drawn on the sphere and whose center is the same center of the sphere. SPHERE ELEMENTS Rotating axis: Line where the diameter of the semicircle is located. Center: Interior point equidistant from any point on the sphere. Diameter: Line segment that passes through the center (rotating axis) of the sphere and joins two opposite points located on its surface. Radius: Distance from the center to a point on the sphere. Area of the sphere: Surface that surrounds this solid of revolution. Volume of the sphere: It is the space that the sphere occupies, or thefilling capacity it has. AREA AND VOLUME OF THE SPHERE Ana wants to give her classmates a ball of chocolate for “love and friendship”. She has a mold to make the balls that has 2 cm of radius. She needs to know with how much melted chocolate she must fill the mold to make a sphere or chocolate ball. After making the balls, she wants to wrap them in foil without wasting it. How much foil does she need in order to wrap a ball? MATH PROBLEM To find out how much chocolate is needed to fully fill the mold, we calculate the volume as follows: And to know how much paper we need to wrap a ball without wasting it we calculate the area: |