Question

Ответ все стороны треугольника имеет длину 12 см найдите сторону уменьшили на 2 см Найди периметр треугольника

Answer 1

1) 12-2=10 (см) - каждая сторона
2) 10+10+10=30 (см) - периметр полученного треугольника

Answer 2

12-2=10 длина уменьшенной стороны
12+12+10=34

Answer 3

Calculating the Perimeter of a Triangle

To find the perimeter of a triangle when all sides are reduced by 2 cm, we can use the fact that the perimeter of a triangle is the sum of the lengths of its three sides.

Given that each side of the triangle has a length of 12 cm, and we need to find the perimeter when each side is reduced by 2 cm.

Solution

1. Original Side Length: Each side of the triangle has a length of 12 cm. 2. Reduced Side Length: When each side is reduced by 2 cm, the new length of each side is 12 cm - 2 cm = 10 cm.

Now, we can calculate the perimeter of the triangle using the reduced side length.

Perimeter Calculation

The perimeter (P) of a triangle is given by the formula: P = a + b + c where a, b, and c are the lengths of the sides of the triangle.

Substituting the reduced side length (10 cm) into the formula: P = 10 cm + 10 cm + 10 cm = 30 cm

Therefore, the perimeter of the triangle when each side is reduced by 2 cm is 30 cm.

This calculation is based on the given information and the formula for calculating the perimeter of a triangle.