A solid steel spherical ball, 13 cm in diameter has a 5 cm hole drilled through the centre how deep is the hole in cm?
Answers
Answer:
13cm
Step-by-step explanation:
13 cm becz it is drilled through the centre so it will be same as the diameter of sphere
diameter of the sphere is equal to depth
Answer: The depth of the hole inside the spherical ball is equal to its diameter, i.e., 13 cm.
Step-by-step explanation:
Concept:
Cylinder: Cylinders are geometric bodies that are very common in everyday life, such as soup cans. When disassembled, you can see that it has two ends, called the base, which is usually circular. The bases are always congruent and parallel to each other. When you "expand" a cylinder, when you flatten it, the sides are actually rectangular. (See the surface of the cylinder).
Sphere: A sphere is a three-dimensional round object. Unlike other 3D shapes, the sphere has no corners or edges. All points on its surface are equidistant from its center. That is, the distance from the center of the sphere to any point on the surface is the same. There are many spherical real-world objects around us. Our planet Earth is not a perfect sphere, but it is called a spheroid. It is called a spheroid because it resembles a sphere.
Step 1: The diameter of the circular openings of the hole is 5 cm(given in the question).
Step 2: The depth of the cylindrical hole is 13 cm since the diameter of the sphere is 13 cm. This is because, as we can see in the figure, the hole extends from the top of the sphere to its bottom and the depth of the hole is hence equal to the diameter of the sphere.
Final answer: The depth of the hole is 13 cm.