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Розкрито площу поверхні сфери: основи та формули

Розкрито площу поверхні сфери: основи та формули

Barcha darajalar • 7 Ma'ruzalar • Umrbod kirish
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Розкрито площу поверхні сфери: основи та формули
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O'qituvchi bilan tanishing: Prabh Kirpa Classes

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38 daq
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Siz nimani o'rganasiz

Що означає сфера? Яка різниця між сферою та півсферою?
Скільки граней мають сфера та півсфера?
Як обчислити поверхневу площу сфери?
Що станеться з площею поверхні сфери, якщо її радіус вдвічі збільшити?

Kurs mazmuni

2 bo'limlar • 7 ma'ruzalar • 00:38:32 umumiy uzunligi

Introduction

02:04
  1. What is meant by Sphere?
  2. What is the difference between Sphere and Hemisphere?
  3. How many faces sphere and hemisphere have?
  4. What are the examples of spheres in the real world?
  5. What is the formula for calculating the surface area of sphere?
  6. If the radius of the sphere is doubled, what will happen to its surface area?

Meaning and Surface Area

06:46
  1. What is the meaning of sphere?
  2. What is meant by radius of sphere?
  3. What are the properties of a sphere?
  4. Which are some examples of spheres in everyday life?
  5. What is meant by Hemisphere?
  6. What is the difference between Sphere and Hemisphere?
  7. How many faces a sphere has?
  8. What is meant by surface area of a sphere?
  9. What is the formula for calculation of a sphere?
  10. What is meant by “π” in the formula for calculation of a sphere?

Calculating radius from surface area

03:05

Calculating Surface Area of Sphere from radius

06:31

How to find the surface area of a sphere when radius is given?

Ratio of surface area of two balloons

05:46

How to calculate the ratio of surface areas of the two balloons when radius of a spherical balloon is doubled?

Calculating Surface Area of Sphere from diameter

07:26

How to calculate the surface area of a sphere when diameter of sphere is given?

Ratio of surface area of moon vs. Earth

06:50

How to calculate the ratio of surface area of moon and earth when diameter of the moon is approximately one-fourth of diameter of the earth?

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Ushbu kurs haqida

  • Що означає сфера?
  • Що означає радіус сфери?
  • Які властивості сфери?
  • Які приклади сфер у повсякденному житті?
  • Що означає півсфера?
  • На якій відстані від центру сфери знаходиться будь-яка точка на поверхні сфери?
  • Яка різниця між сферою та півсферою?
  • Скільки граней має сфера?
  • Що означає поверхнева площа сфери?
  • Яка формула для обчислення площі сфери?
  • Що означає "π" у формулі для обчислення площі сфери?
  • Як знайти поверхневу площу сфери, якщо дано радіус?
  • Як обчислити поверхневу площу сфери, якщо дано діаметр сфери?
  • Як обчислити співвідношення поверхневих площ двох повітряних куль, якщо радіус кулі вдвічі збільшено?
  • Як обчислити радіус сфери, якщо дано її поверхневу площу?
  • Як обчислити співвідношення поверхневих площ Місяця та Землі, якщо діаметр Місяця приблизно вчетверо менший за діаметр Землі?
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