Math Problem Statement

Tentukan jarak titik di bawah ini jika panjang rusuknya adalah 6 cm.

Solution

The problem involves a cube with a side length of 6 cm. We are asked to determine the distance between several pairs of points on the cube.

Let's analyze the distances for each pair:

  1. Distance from A to F:
    Points A and F are located on the same edge of the cube. The distance between A and F is the side length of the cube, which is 6 cm.

  2. Distance from B to G:
    Points B and G are located on the diagonal of one of the faces of the cube. To find the distance of the diagonal on a face, we use the Pythagorean theorem: Diagonal=62+62=72=62cm\text{Diagonal} = \sqrt{6^2 + 6^2} = \sqrt{72} = 6\sqrt{2} \, \text{cm}

  3. Distance from A to G:
    Points A and G are diagonally opposite in the three-dimensional space of the cube. To calculate this distance, we use the 3D Pythagorean theorem: Distance=62+62+62=108=63cm\text{Distance} = \sqrt{6^2 + 6^2 + 6^2} = \sqrt{108} = 6\sqrt{3} \, \text{cm}

  4. Distance from A to P:
    Points A and P are located along one of the edges of the cube. Since P is directly above A, the distance from A to P is simply the side length of the cube, which is 6 cm.

  5. Distance from O to B:
    The point O is the center of the cube. To find the distance from the center of the cube (O) to any vertex (B), we use half the diagonal of the cube: Distance=62+62+622=1082=33cm\text{Distance} = \frac{\sqrt{6^2 + 6^2 + 6^2}}{2} = \frac{\sqrt{108}}{2} = 3\sqrt{3} \, \text{cm}

Answers:

  • a. A to F: 6 cm
  • b. B to G: 626\sqrt{2} cm
  • c. A to G: 636\sqrt{3} cm
  • d. A to P: 6 cm
  • e. O to B: 333\sqrt{3} cm

Would you like a further explanation of any of these points or do you have any questions?

Additional Related Questions:

  1. How do you calculate the diagonal of a cube face?
  2. How is the 3D Pythagorean theorem applied in space?
  3. What is the formula for the distance between two opposite vertices of a cube?
  4. How do you find the center of a geometric shape like a cube?
  5. What are other properties related to the diagonals of a cube?

Tip: To find distances in a 3D space, always use the Pythagorean theorem in three dimensions: x2+y2+z2\sqrt{x^2 + y^2 + z^2}.

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Math Problem Analysis

Mathematical Concepts

Geometry
3D Space
Pythagorean Theorem

Formulas

Distance between two points in 3D: √(x^2 + y^2 + z^2)
Face diagonal of a cube: √(a^2 + a^2) = a√2
Space diagonal of a cube: √(a^2 + a^2 + a^2) = a√3

Theorems

Pythagorean Theorem

Suitable Grade Level

Grades 8-10