Question

Фигуры составили из шаров. Для второй фигуры нужно 3 шара. Сколько шаров нужно для 10 фигуры?(Если 1 фигура состоит из 1 шара, 2 фигура состоит из 3 шаров, а 3 фигура состоит из 5 шаров)

Answer 1

Мне кажетсЯ 20 или 22

Answer 2

Calculating the Number of Balls for the 10th Figure

To calculate the number of balls needed for the 10th figure, we can observe the pattern in the number of balls required for each figure and then apply it to find the number of balls for the 10th figure.

- The 1st figure requires 1 ball. - The 2nd figure requires 3 balls. - The 3rd figure requires 5 balls.

We can see that the number of balls required for each figure follows the pattern of 1, 3, 5, 7, 9, and so on. This pattern indicates that for each subsequent figure, the number of balls required increases by 2.

Applying the Pattern

To find the number of balls needed for the 10th figure, we can apply the pattern we observed. Starting from the 4th figure, each subsequent figure requires 2 more balls than the previous one.

- The 4th figure requires 7 balls. - The 5th figure requires 9 balls. - The 6th figure requires 11 balls. - The 7th figure requires 13 balls. - The 8th figure requires 15 balls. - The 9th figure requires 17 balls.

Calculating the Number of Balls for the 10th Figure

Now, to find the number of balls needed for the 10th figure, we can continue the pattern:

- The 10th figure will require 19 balls.

Therefore, the 10th figure will require 19 balls in total.

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