Question

1)Как изменится длина окружности,если её радиус:а) увеличили в 3разаб) уменьшили в 2 раза2) Как изменится радиус окружности,если её длину:а) увеличить в 5 разб) уменьшить в 7 разПомогите пожаалуйста!!!

Answer 1

Ну , начнем с того, что радиус-это отрезок , проведенный из середины окружности, т.е. если меняем размер радиуса, меняется и размер окружности. Диаметр - это длинна окружности, радиус равен половине диаметра .  Дальше смотреть фото...

Answer 2

Changes in Circumference based on Radius Changes:

1) If the radius of a circle is increased by 3 times: - The circumference of the circle will also increase by 3 times. - This is because the circumference of a circle is directly proportional to its radius. - To calculate the new circumference, you can multiply the original circumference by 3. - For example, if the original circumference is 10 units, the new circumference will be 10 * 3 = 30 units.

2) If the radius of a circle is decreased by 2 times: - The circumference of the circle will also decrease by 2 times. - This is because the circumference of a circle is directly proportional to its radius. - To calculate the new circumference, you can multiply the original circumference by 2. - For example, if the original circumference is 20 units, the new circumference will be 20 * 2 = 40 units.

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Changes in Radius based on Circumference Changes:

1) If the circumference of a circle is increased by 5 times: - The radius of the circle will also increase. - However, the exact increase in radius cannot be determined without knowing the original radius. - The relationship between the circumference and radius of a circle is not linear, so a specific formula is needed to calculate the new radius. - One such formula is: radius = circumference / (2 * π), where π is a mathematical constant approximately equal to 3.14159. - Using this formula, you can calculate the new radius by dividing the increased circumference by (2 * π).

2) If the circumference of a circle is decreased by 7 times: - The radius of the circle will also decrease. - Again, the exact decrease in radius cannot be determined without knowing the original radius. - You can use the same formula mentioned above: radius = circumference / (2 * π). - Calculate the new radius by dividing the decreased circumference by (2 * π).

Please note that the exact numerical values for the changes in radius cannot be determined without knowing the original values of the radius and circumference.

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