Question

Периметр треугольника 27 см. Чему ровны длины сторон треугольника ,если вторая его сторона на 2 см длиннее первой, а третья сторона на 4 см короче. Нарисуй схему она поможет решить задачу

Answer 1

Здача ршаеться так
1)-27:3=9(см)-1 сторона
2)-9+2=11(см)-2 сторона
3)-11-4=7(см)-3 сторона
Ответ: 1 сторона- 9см, 2 сторона-11см и 3 сторона 7см

Answer 2

Perimeter of a Triangle

To find the lengths of the sides of a triangle given its perimeter, we can set up a system of equations based on the information provided.

Let's denote the lengths of the sides of the triangle as a, b, and c. We are given that the perimeter of the triangle is 27 cm, so we have the equation:

a + b + c = 27 We are also given that the second side of the triangle is 2 cm longer than the first side, and the third side is 4 cm shorter than the first side. This gives us the following equations:

b = a + 2 c = a - 4

Now we can substitute these equations into the first equation to solve for a:

(a) + (a + 2) + (a - 4) = 27 3a - 2 = 27 3a = 29 a = 9.67

Now that we have the value of a, we can substitute it back into the other equations to find the lengths of b and c:

b = 9.67 + 2 = 11.67 c = 9.67 - 4 = 5.67

Therefore, the lengths of the sides of the triangle are approximately 9.67 cm, 11.67 cm, and 5.67 cm.

Diagram of the Triangle

Here is a diagram that can help visualize the triangle:

     /\
    /  \
 a /    \ b
  /      \
 /________\
     c

In the diagram, a represents the first side of the triangle, b represents the second side (which is 2 cm longer than a), and c represents the third side (which is 4 cm shorter than a).

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