1.The formula for the volume of a cylinder is V = πr^2h, where r is the radius and h is the height. Substituting the values, we get V = π(3 cm)^2 * 5 cm = 45π cm^3. Therefore, the volume of the cylinder is 45π cubic centimeters.
2.The radius of the sphere is half of its diameter, so the radius is 4 dm. The formula for the volume of a sphere is V = (4/3)πr³. Plugging in the value of the radius gives us V = (4/3)π(4³) = 268.08 cubic dm. Therefore, the volume of the sphere is approximately 268.08 cubic dm.
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Answer:
1.The formula for the volume of a cylinder is V = πr^2h, where r is the radius and h is the height. Substituting the values, we get V = π(3 cm)^2 * 5 cm = 45π cm^3. Therefore, the volume of the cylinder is 45π cubic centimeters.
2.The radius of the sphere is half of its diameter, so the radius is 4 dm. The formula for the volume of a sphere is V = (4/3)πr³. Plugging in the value of the radius gives us V = (4/3)π(4³) = 268.08 cubic dm. Therefore, the volume of the sphere is approximately 268.08 cubic dm.