Question

Нада да завтра. У равнабедраным трохвугольнику аснова в три раза меньшая за бакавую старану, а перыметр ровны 70см. Выличыте давжыни старон трохвугольника.

Answer 1

основание - х см, тогда 3х см - боковая сторона

периметр равен х+3х+3х=7х=70

х=10

10 - основание, 30 - боковая сторона

Answer 2

Problem Analysis

The user is asking for a detailed explanation of a problem related to an isosceles triangle. The problem states that the length of one side of the triangle is three times smaller than the base, and the perimeter of the triangle is 70 cm. The user wants to know the lengths of the triangle's sides.

Solution

Let's assume that the length of the base of the triangle is x cm. According to the problem, one of the other two sides is three times smaller than the base. Therefore, the length of one of the other sides can be represented as x/3 cm.

To find the lengths of the sides, we can use the formula for the perimeter of a triangle:

Perimeter = sum of all sides

In this case, the perimeter is given as 70 cm, so we can write the equation as:

x + x/3 + x/3 = 70

Now, let's solve this equation to find the value of x.

Solving the Equation

To solve the equation, we can multiply through by 3 to eliminate the fractions:

3x + x + x = 210

Combining like terms:

5x = 210

Dividing both sides by 5:

x = 42

So, the length of the base of the triangle is 42 cm.

Now, we can find the lengths of the other two sides:

One side = x/3 = 42/3 = 14 cm

Therefore, the lengths of the sides of the isosceles triangle are:

Base: 42 cm Other two sides: 14 cm

Conclusion

In conclusion, the length of the base of the isosceles triangle is 42 cm, and the lengths of the other two sides are 14 cm each.