Question

периментр равнобедренного треугольника равен 42 см найдите стороны этого треугольника если боковая стронона в 3 раза больше основания

Answer 1

В равнобедреном треугольники 2 стороны равны, а основание нет.
Обозначим основание  за а и составим уравнение по данным.
3а+3а+а=42
а=6, значит основание равно 6см
3а-боковая сторона:3*6=18, так как треугольник равнобедренный то вторая сторона будет тоже 18см
Ответ:18см,18см,6см

Answer 2

42=х+x*3+x*3
42=7x
х=42/7x=6
х=6*3=18
основа 6 сторона18

Answer 3

Perimeter of an Isosceles Triangle

To find the sides of an isosceles triangle when the perimeter is 42 cm and one of the sides is three times the length of the base, we can use the following steps:

1. Let's assume the base of the triangle is represented by the variable b. 2. Since one of the sides is three times the length of the base, the other two sides can be represented as 3b and 3b. 3. The perimeter of a triangle is the sum of all its sides. In this case, the perimeter is given as 42 cm, so we can write the equation: b + 3b + 3b = 42. 4. Simplifying the equation, we get: 7b = 42. 5. Dividing both sides of the equation by 7, we find that b = 6. 6. Therefore, the base of the triangle is 6 cm, and the other two sides are 3b = 3 * 6 = 18 cm.

So, the sides of the isosceles triangle are 6 cm, 18 cm, and 18 cm.