Question

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What is the total surface area(TSA) of a sphere?

Answer 1

Question: What is the total surface area(TSA) of a sphere?
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Answer : Total Surface Area of Sphere = 4πr²

↪Sphere : Objects like Ball, FOOTBALL, Cricket Ball e.t.c are said to have the shape of Sphere.

▶ Formulae ▶✍

➡ Note Some Formulae which related to Sphere!

↪ Volume of Sphere = 4/3πr³

↪ Total Surface Area of Sphere = 4πr²

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Answer 2

Proper Question : What is the total surface Area of a sphere ?

Answer : Total Surface Area of Sphere = 4πr²

Step- By - Step Explanation :

Let the Radius of Sphere be 'r'

STEP : (1) Suppose Sphere is , in the Shape of cylinder

So, Curved Surface Area of Cylinder = 2πrh

Then, We have need to Find The Total Surface Area of Sphere;

Total Surface Area of Sphere = Curved Surface Area of Cylinder ( Except Height) × Total Radius including Cylinder and Sphere

Total Surface Area of Sphere = 2πr × 2r

Total Surface Area of Sphere = 4πr²

Thus, Total Surface Area of Sphere is 4πr²

FOR MORE INFORMATION , [Please Refer to Attachment which have given Below]

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