Question

Стороны треугольника 5 см 7 см 9 см найти средние линии этого треугольника

Answer 1

Средняя линия равна полвине длины стороноы:**
2,5
3,5
4,5

Answer 2

Finding the Midlines of a Triangle

To find the midlines of a triangle, we need to determine the midpoints of each side of the triangle. The midline is a line segment that connects the midpoints of two sides of a triangle.

Given a triangle with side lengths of 5 cm, 7 cm, and 9 cm, let's find the midlines.

Step 1: Find the Midpoint of Side AB

The midpoint of side AB can be found by averaging the x-coordinates and y-coordinates of points A and B. Let's assume A is (x1, y1) and B is (x2, y2).

The coordinates of the midpoint M are: - x-coordinate: (x1 + x2) / 2 - y-coordinate: (y1 + y2) / 2

Step 2: Find the Midpoint of Side BC

Similarly, the midpoint of side BC can be found by averaging the x-coordinates and y-coordinates of points B and C.

The coordinates of the midpoint N are: - x-coordinate: (x2 + x3) / 2 - y-coordinate: (y2 + y3) / 2

Step 3: Find the Midpoint of Side CA

Finally, the midpoint of side CA can be found by averaging the x-coordinates and y-coordinates of points C and A.

The coordinates of the midpoint K are: - x-coordinate: (x3 + x1) / 2 - y-coordinate: (y3 + y1) / 2

Now that we have the coordinates of the midpoints M, N, and K, we can draw the midlines of the triangle.

Please note that the specific coordinates of points A, B, and C were not provided in the question. Therefore, we cannot calculate the exact coordinates of the midpoints M, N, and K. However, the general method described above can be used to find the midlines of any triangle.

I hope this helps! Let me know if you have any further questions.