Question

Q9. The area of the base of the right circular cylinder is?​

Answer 1

Step-by-step explanation:

THE AREA OF THE BASE OF THE RIGHT CIRCULAR CYLINDER IS 2π r² + 2πrh

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Answer 2

Answer

Area of one base is πr² and total area is of surface of the base is 2πr².

Step by step explanationn:

If you carefully look at any figure of a cylinder . There are two circles in a base .

Suppose , it's radius is ' r ' cm . Therefore, area of circle = πr² also there are two circles . So total base surface area of cylinder will be 2πr².

If you want to add the Lateral surface area to get the total surface area . Multiply the circumference with height .

According to above example , radius is ' r ' cm . Therefore , circumference is equal to 2πr and if you multiply height h to it . You will get 2πrh .

and hence total surface area of cylinder:

2πrh+2πr²

= 2πr(r+h)