Question

Периметр равнобедренного треугольника 19 см,а основание 7 см. Найти боковые стороны.

Answer 1

Представим треугольник ABC. AC - Основание. AB и CB - боковые стороны. 19-7=12 см(Это AB+CB т.е. сумма боковых сторон). 12/2=6см - это AB и CB. Ответ: AB = 6 см, CB=6 см.

Answer 2

Perimeter of an Isosceles Triangle

To find the lengths of the two equal sides of an isosceles triangle, we can use the formula for the perimeter of a triangle, which is the sum of all its side lengths.

Let's denote the length of the two equal sides as x and the length of the base as 7 cm.

The perimeter of the triangle is given as 19 cm.

Using the formula for the perimeter of a triangle, we can set up the following equation:

x + x + 7 = 19

Simplifying the equation, we get:

2x + 7 = 19

Subtracting 7 from both sides, we have:

2x = 12

Dividing both sides by 2, we find:

x = 6

Therefore, the lengths of the two equal sides of the isosceles triangle are 6 cm each.

Answer:

The lengths of the two equal sides of the isosceles triangle are 6 cm each.