Question

find the surface area of a sphere of diameter 14 CM​

Answer 1

Given :

• Shape = Sphere
• Diameter of Sphere = 14cm

To Find :

• Total Surface Area of Sphere

Solution :

Finding the radius of the sphere :

⠀⟶⠀Diameter = 2 × Radius

⠀⟶⠀Radius = Diameter/2

⠀⟶⠀Radius = 14/2

⠀⟶⠀Radius = 7cm

Finding Total Surface Area of Sphere :

We know that,

• Total Surface Area of Sphere = 4πr²

⠀⟶⠀Total Surface Area = 4πr²

⠀⟶⠀Total Surface Area = 4 × 22/7 × (7)²

⠀⟶⠀Total Surface Area = 4 × 22/7 × 7 × 7

⠀⟶⠀Total Surface Area = 4 × 22 × 7

⠀⟶⠀Total Surface Area = 88 × 7

⠀⟶⠀Total Surface Area = 616cm²

So Total Surface Area of Sphere is 616cm²

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Answer 2

Given:

Shape = Sphere

Diameter of Sphere = 14cm

To find:

Total Surface Area of Sphere

Solution:

Finding the radius of the sphere :

⠀⟶⠀Diameter = 2 × Radius

⠀⟶⠀Radius = Diameter/2

⠀⟶⠀Radius = 14/2

⠀⟶⠀Radius = 7cm

Finding Total Surface Area of Sphere :

We know that,

Total Surface Area of Sphere = 4πr²

⠀⟶⠀Total Surface Area = 4πr²

⠀⟶⠀Total Surface Area = 4 × 22/7 × (7)²

⠀⟶⠀Total Surface Area = 4 × 22/7 × 7 × 7

⠀⟶⠀Total Surface Area = 4 × 22 × 7

⠀⟶⠀Total Surface Area = 88 × 7

⠀⟶⠀Total Surface Area = 616cm²

So Total Surface Area of Sphere is 616cm²

___________________

Hope it will helps you ❤️